Herbicidal sulfonamides

ABSTRACT

This invention relates to N-(heterocyclicaminocarbonyl)-o-alkenylbenzenesulfonamides which are useful as agricultural chemicals.

This is a division of application Ser. No. 424,479, filed Sept. 27,1982, now U.S. Pat. No. 4,474,601, which is a continuation-in-part of mycopending application Ser. No. 168,346, filed July 11, 1980 now Pat. No.4,368,069.

BACKGROUND OF THE INVENTION

This invention relates to novelN-(heterocyclicaminocarbonyl)-o-alkenylbenzenesulfonamides which areuseful as agricultural chemicals and in particular as herbicides andgrowth regulants.

Netherlands Patent No. 121,788, published Sept. 15, 1966, teaches thepreparation of compounds of Formula (I) and their use as general orselective herbicides: ##STR1## wherein R₁ and R₂ may independently bealkyl of 1-4 carbon atoms; and

R₃ and R₄ may independently be hydrogen, chlorine or alkyl of 1-4 carbonatoms.

Compounds of Formula (II), and their use as antidiabetic agents, arereported in J. Drug. Res. 6, 123 (1974): ##STR2## wherein R is pyridyl.

In U.S. Pat. No. 4,127,405, compounds are disclosed of the generalformula: ##STR3## wherein R₁ is ##STR4## R₃ and R₆ are independentlyhydrogen, fluorine, chlorine, bromine, iodine, alkyl of 1-4 carbonatoms, alkoxy of 1-4 carbon atoms, nitro, trifluoromethyl, cyano, CH₃S(O)_(n) -- or CH₃ CH₂ S(O)_(n) --;

R₄ is hydrogen, fluorine, chlorine, bromine or methyl;

R₅ is hydrogen, fluorine, chlorine, bromine, methyl or methoxy;

R₇ is hydrogen, fluorine, chlorine, bromine, alkyl of 1-2 carbon atomsor alkoxy of 1-2 carbon atoms;

R₈ is hydrogen, methyl, chlorine or bromine;

R₉ and R₁₀ are independently hydrogen, methyl, chlorine or bromine;

W and Q are independently oxygen or sulfur;

n is 0, 1 or 2;

X is hydrogen, chlorine, bromine, methyl, ethyl, alkoxy of 1-3 carbonatoms, trifluoromethyl, CH₃ S-- or CH₃ OCH₂ --; and

Z is methyl or methoxy; or their agriculturally suitable salts; providedthat:

(a) when R₅ is other than hydrogen, at least one of R₃, R₄, R₆ and R₇ isother than hydrogen and at least two of R₃, R₄, R₆ and R₇ must behydrogen;

(b) when R₅ is hydrogen and all of R₃, R₄, R₆ and R₇ are other thanhydrogen, then all of R₃, R₄, R₆ and R₇ must be either chlorine ormethyl; and

(c) when R₃ and R₇ are both hydrogen, at least one of R₄, R₅ or R₆ mustbe hydrogen.

In particular, the patent discloses orthosubstituted compounds whereinthe substitution is C₁ -C₄ alkyl.

The presence of undesired vegetation causes substantial damage to usefulcrops, especially agricultural products that satisfy man's basic foodneeds, such as soybeans, corn, wheat and the like. The currentpopulation explosion and concomitant world food shortage demandimprovements in the efficiency of producing these crops. Preventing orminimizing the loss of a portion of such valuable crops by killing, orinhibiting the growth of undesired vegetation is one way of improvingthis efficiency.

A wide variety of materials useful for killing, or inhibiting(controlling) the growth of undesired vegetation is available; suchmaterials are commonly known as herbicides. The need exists however, forstill more effective herbicides especially those which destroy or retardweeds without causing significant damage to useful crops.

SUMMARY OF THE INVENTION

This invention relates to novel compounds of Formula I, suitableagricultural compositions containing them, and their method of use asgeneral, as well as selective, pre-emergence and post-emergenceherbicides. ##STR5## wherein R is ##STR6## R₂ is C₂ -C₅ alkenyl, C₅ -C₆cycloalkenyl or C₂ -C₃ alkenyl substituted with 1-3 chlorine atoms;

n is 0 or 1;

R₁ is H, F, Cl, Br, NO₂, CF₃, C₁ -C₄ alkyl, OCF₃ or C₁ -C₃ alkoxy;

R₅ and R₆ are independently H or CH₃ ;

A is ##STR7## X is H, CH₃, OCH₃, OCH₂ CH₃, OCH₂ CF₃, CH₂ OCH₃ or Cl;

Y is CH₃, OCH₃, OCH₂ CH₃, NH₂, NHCH₃ or N(CH₃)₂ ;

Z is N, CH, CCl, CBr, CCN, CCH₃, CCH₂ CH₃, CCH₂ CH₂ Cl or CCH₂ CH═CH₂ ;

Y₁ is H, CH₃, OCH₃ or Cl;

X₂ and Y₂ are independently CH₃ or OCH₃ ; and

Q is O or CH₂ ;

provided that

(1) when Z is other than N or CH, then X is H, CH₃ or OCH₃ and Y is CH₃or OCH₃ ; and

(2) when Z is N and X is Cl, then Y is CH₃.

PREFERRED COMPOUNDS

Preferred for their higher herbicidal activity and/or more favorableease of synthesis are:

(1) Compounds of Formula I wherein R₁ is H;

(2) Compounds of Preferred (1) wherein A is ##STR8## and Z is N or CH;(3) Compounds of Preferred (2) wherein R₅ and R₆ are H; and

(4) Compounds of Preferred (3) wherein X is CH₃, OCH₃ OCH₂ CH₃ or CH₂OCH₃, and Y is CH₃ or OCH₃.

Specifically preferred for highest herbicidal activity and/or morefavorable ease of synthesis are:

N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)bezenesulfonamide;

N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide;

N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide;

N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide;

N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide;

N-[(4,6-dimethyl-1,3,5-triazin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide;

2-(1-cyclopentenyl)-N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide;

2-(1-cyclopentenyl)-N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide;

2-(1-cyclopentenyl)-N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]benzenesulfonamide;

2-(1-cyclopentenyl)-N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide;and

2-(1-cyclopentenyl)-N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide.

This invention also relates to compounds of Formula II and Formula IIIwhich are useful as intermediates for the preparation of the herbicidalcompounds of Formula I ##STR9## wherein R is ##STR10## R₂ is C₂ -C₅alkenyl, C₅ -C₆ cycloalkenyl or C₂ -C₃ alkenyl substituted with 1-3chlorine atoms;

n is 0 or 1;

R₁ is H, F, Cl, Br, NO₂, CF₃, C₁ -C₄ alkyl, OCF₃ or C₁ -C₃ alkoxy;

R₅ and R₆ are independently H or CH₃ ; and

Z is N or CH.

Preferred Intermediates

Preferred intermediates, for the higher herbicidal activity of thecompounds of Formula I, are the compounds of Formula II and Formula IIIwhere R₁ is H.

DETAILED DESCRIPTION OF THE INVENTION Synthesis

The compounds of Formula I can be prepared by one or more of thefollowing methods; the first and most general of which is shown inEquation 1. In this procedure, an aryl sulfonylisocyanate of Formula IIIis combined with an appropriate aminoheterocycle IV wherein R, R₁ and Aare as previously defined. ##STR11##

The reaction is best carried out in inert aprotic organic solvents suchas methylene chloride, tetrahydrofuran or acetonitrile, at ambienttemperature and pressure. The mode of addition is not critical; however,it is often convenient to add the sulfonyl isocyanate to a stirredsuspension of the aminoheterocycle. Since such isocyanates are usuallyliquids, their addition can be easily controlled.

The reaction is generally exothermic. In some cases, the desired productis insoluble in the warm reaction medium and crystallizes from it inpure form. Products soluble in the reaction medium are isolated byevaporation of solvent, trituration of the solid residue with solventssuch as 1-chlorobutane or ethyl ether, and filtration.

An alternative method of synthesis is shown in Equation 2, wherein Z isCH or N, X' is CH₃ O or C₂ H₅ O, and Y' is CH₃ O or C₂ H₅ O. Theintermediate II is formed upon reaction of an appropriate sulfonamide ofFormula V with a heterocyclic isocyanate of Formula VI. Thisintermediate can then be treated with an excess of an alkali metalalkoxide to produce chloro alkoxy heterocyclic ureas such as VII or,upon further treatment, the dialkoxyheterocyclic ureas VIII. ##STR12##

The heterocyclic isocyanates (VI) used in Reaction 2a may be preparedaccording to the methods described in Swiss Patent No. 579,062, U.S.Pat. No. 3,919,228, U.S. Pat. No. 3,732,223 and Agnew. Chem. Int. Ed.10, 402 (1976), the disclosures of which are herein incorporated byreference.

Thus the aromatic sulfonamide V and the heterocyclic isocyanate VI arecontacted in the presence of an inert organic solvent, for example,acetonitrile, tetrahydrofuran (THF), toluene, acetone or butanone.Optionally, a catalytic amount of a base, such as1,4-diazabicyclo[2.2.2]octane (DABCO), potassium carbonate, sodiumhydride or potassium tert-butoxide, may be added to the reactionmixture. The quantity of base constituting a catalytic amount would beobvious to one skilled in the art. The reaction mixture is preferablymaintained at a temperature of about 25° to 110° C., and the product cangenerally be recovered by cooling and filtering the reaction mixture.For reasons of efficiency and economy, the preferred temperature rangeis about 60° to 85° C.

In Reaction Steps 2b and 2c, one or two of the halogen atoms on theheterocyclic ring of the compound of Formula II is displaced by anucleophilic species. Generally, this may be done by contacting thecompound of Formula II either with alkanol or with alkoxide as describedby X', where X' is methoxy or ethoxy.

Thus, in Reaction Step 2b, a compound of Formula II, can be contactedwith at least one equivalent of alkanol. This reaction is sluggish,however, and it is preferred to contact the compound of Formula II withat least two equivalents of alkoxide. The alkoxide can be provided in anumber of ways.

(a) The compound of Formula II can be suspended or dissolved in analkanol solvent in the presence of at least two equivalents of alkoxide.The alkoxide can be added directly as alkali metal or alkaline earthmetal alkoxide or can be generated by the addition to the alkanolsolvent of at least two equivalents of a base capable of generatingalkoxide from the solvent. Suitable bases include, but are not limitedto, the alkali and alkaline earth metals, their hydrides andtert-butoxides. For example, when X' is methoxy, the compound of FormulaII could be suspended or dissolved in methanol in the presence of twoequivalents of sodium methoxide. Alternatively, two equivalents ofsodium hydride could be used in place of the sodium methoxide.

(b) The compound of Formula II can be suspended or dissolved in an inertsolvent in the presence of at least two equivalents of alkoxide.Suitable inert solvents include, but are not limited to, acetonitrile,THF and dimethylformamide. The alkoxide may be added directly as alkalimetal or alkaline earth metal alkoxide or may be generated from alkanoland a base as described in (a) above. For example, when X' is methoxy,the compound of Formula II could be suspended or dissolved in THF in thepresence of two equivalents of sodium methoxide. Alternatively, twoequivalents each of methanol and sodium hydride could be used instead ofsodium methoxide.

For reasons of economy and efficiency, procedure (a) is the morepreferred method.

It should be noted that two equivalents of alkoxide are required forReaction Step (b) whereas only one equivalent of alkanol is needed forthe same process. This difference is due to the reaction which isbelieved to occur between the alkoxide and the sulfonyl nitrogen of thesulfonamide of Formula II. When alkoxide is used, the first equivalentof alkoxide removes a proton from the sulfonyl nitrogen, and is only thesecond equivalent which effects displacement of the halogen. As aresult, two equivalents of alkoxide are required. The resulting saltmust be acidified, e.g., with sulfuric, hydrochloric or acetic acid, toyield a compound of Formula VII. Applicant, of course, does not intendto be bound by the mechanism described above.

In Reaction Step 2c a compound of Formula VII is contacted with eitherone equivalent of alkanol or with two equivalents of alkoxide. Whenalkoxide is used, it may be provided in either of the methods describedabove in connection with Reaction Step 2b and the resulting salt can beacidified to yield a compound of Formula VIII, wherein Y' is methoxy orethoxy.

When X'=Y'=OCH₃ or OC₂ H₅ Reaction Steps 2b and 2c may be combined.Thus, a compound of Formula II may be contacted either with at least twoequivalents of alkanol or with at least three equivalents of alkoxide.

For a compound of Formula II, certain reaction conditions will favordisplacement of only one of the chloro groups. These conditions are theuse of low temperatures, and when alkoxide is used, the slow addition ofthe stoichiometric amount of alkoxide or alkoxide-generating base to themedium containing the compound of Formula II.

When alkoxide is used, both Reaction Steps 2b and 2c are preferably runat temperatures within the range of about -10° to 80° C., the range ofabout 0° to 25° C. being more preferred. Reaction Steps 2b and 2c aremore sluggish when alkanol is used instead of alkoxide, and more drasticconditions are required for the reaction to go to completion. Thus,higher temperatures, up to and including the boiling point of thealkanol itself, are required.

Another method of synthesis of compounds of Formula I is outlined inEquation 3, in which R₁, R₅, R₆ and n are as previously defined, and R₇and R₈ are independently hydrogen or C₁ -C₃ alkyl. ##STR13##

The syntheses of compounds IX with n=0 have been disclosed in unexaminedEuropean Patent No. 7687 and those with n=1 have been disclosed incopending application No. BA-8369-A, both of which are hereinincorporated by reference.

Reduction of ester IX to the corresponding aldehyde X may beaccomplished by the use of sodium bis(2-methoxyethoxy)aluminum hydridein the presence of morpholine as described in the teaching of R.Kanazawa et al., Synthesis, 526 (1976). The reaction is carried outtypically at about -40° C. in an inert organic solvent, preferablytetrahydrofuran, and isolated from the unreacted ester and theover-reduced alcohol by column chromatography.

The aldehyde X is then converted to the o-alkenylbenzenesulfonylurea IAwith an excess of the appropriately substituted Wittig reagent, a methodknown in the art for the synthesis of olefins from aldehydes asdescribed in Organic Synthesis, coll. vol. V, 361, 751, and reviewed inOrganic Reactions, 14, 270 (1965).

Additional claimed compounds of Formula IB, where R₂ is a more highlybranched C₃ -C₅ alkenyl, may be synthesized from their correspondingketones XII, which are in turn obtained from sulfonylureas IX, asindicated in Equation 4. ##STR14## wherein R' is C₁ -C₃ alkyl and R₇ andR₈ are independently hydrogen or methyl.

The first step involves hydrolysis of ester IX to acid XI with potassiumhydroxide in ethanol/water, or with potassium t-butoxide in dimethylsulfoxide when A is a triazine substituted with alkoxy group(s).

The reaction of an organolithium compound with a carboxylic acid toyield a ketone is well known in the literature, e.g., H. Gilman and P.R. Van Ess, JACS, 55, 1258 (1933); H. Gilman, W. Langham and F. W.Moore, ibid, 62, 2327 (1940); C. Tegner, Chem. Scand., 6, 782 (1952); J.F. Arens and D. A. Van Dorp, Rec. Trav., 65, 338 (1946); 66, 759 (1947);and C. H. DePuy, J. M. Dappen, K. L. Eilers and R. A. Klein, J. Org.Chem., 2813 (1964). This conversion is carried out with a large excessof the organolithium compound in a suitable solvent such astetrahydrofuran at room temperature.

The resulting ketone XII is then reacted with a Wittig reagent to affordcompound IB in a similar manner to that described in Equation 3.

Sulfonylisocyanate Intermediates:

The intermediate sulfonyl isocyanates of Formula III can be prepared byreacting corresponding sulfonamides (V) with phosgene in the presence ofn-butyl isocyanate at reflux in a solvent such as chlorobenzene,according to the procedure of H. Ulrich and A. A. Y. Sayigh, NewerMethods of Preparative Organic Chemistry, Vol. VI, p. 223-241, AcademicPress, New York and London, W. Forest Ed. Alternatively, the process ofUlrich and Sayigh can be varied by the addition of a tertiary amine,such as, triethylamine or DABCO, to the reaction mixture. Thepreparation of sulfonamides (V) from ammonium hydroxide and sulfonylchlorides is widely reported in the literature, e.g. Crossley et al. J.Am. Chem. Soc., 60, 2223 (1938).

Preparation of the corresponding sulfonyl chlorides in which R iscycloalkenyl is best accomplished starting from the sulfonic acid saltXIII as shown in Equation 5, wherein m=1 or 2, and R₁ is as definedabove. ##STR15##

In Reaction (5a) a substituted benzenesulfonic acid salt is contactedwith a slight excess of an alkyllithium reagent such as n-butyllithiumat 0° C. to 50° C., preferably below ambient temperature, and in aninert aprotic solvent such as tetrahydrofuran (THF). After allowing thismixture to stir at ambient temperature for approximately one hour, it iscooled in an ice bath and contacted slowly with a slight excess of theappropriate ketone then allowed to stir at ambient temperatureovernight. The dilithium salt (XIV) normally precipitates from themixture and is collected by filtration and dried.

The product obtained from reaction (5a), may then be converted to thealkenylsulfonyl chloride XV by reaction XIV with a 10 to 20 fold excessof thionyl chloride containing a catalytic amount ofN,N-dimethylformamide (1% is conveniently used) at 0° to 10° C.,preferably. After 1 hour the reaction is normally complete and is thenwarmed to room temperature, filtered to remove inorganic by-products andthe filtrate is evaporated under reduced pressure.

Conversion of the crude product XV into the desired sulfonamide VA canbe accomplished using the standard procedures mentioned above, forexample, by dissolving XV in THF and adding an excess of concentratedaqueous ammonia.

This procedure outlined in Equation 5 may also be used to prepareacyclic 2-alkenylarylsulfonamides from acyclic ketones and theappropriate benzenesulfonic acid salt (XIII).

An additional synthesis of sulfonamides V which may also be used asprecursors to isocyanates of Formula III is presented in Equation 6,wherein R' is hydrogen or methyl, and M is an alkali metal. ##STR16##

Commercially available sulfobenzoic anhydride (XVI) may be contactedwith methyl- (or ethyl)lithium in an anhydrous aprotic solvent such asdiethyl ether or THF to yield the water soluble dilithium salt XVII.This salt is not isolated but warmed in aqueous mineral acid solutionsuch as hydrochloric acid to form the water insoluble sulfone XVIII. Theproduct XVIII is conveniently isolated by extraction with an organicsolvent such as methylene chloride or chloroform and evaporation todryness. The sulfone product thus obtained (XVIII) can be ring opened tothe sulfonic acid salt XIX upon treatment with an equivalent amount of astrong alkali metal alkoxide base such as potassium tert-butoxide intert-butanol solution at temperatures from 20° to 100° C., preferably atthe boiling point of the solvent. The salt (XIX) convenientlyprecipitates as it is formed and can be isolated by filtration.

Conversion of the sulfonic acid salt XIX to the sulfonyl chloride (XX)proceeds in the same manner as that described above for the preparationof XV. Similarly, standard amination procedures yield the sulfonamideVB.

Heterocyclic Amine Derivatives

The synthesis of heterocyclic amine derivatives (IV) has been reviewedin "The Chemistry of Heterocyclic Compounds," a series published byInterscience Publ., New York and London. 2-Aminopyrimidines aredescribed by D. J. Brown in "The Pyrimidines," Vol. XVI of the aboveseries. The 2-amino-1,3,5-triazines are reviewed by K. R. Huffman in"The Triazines" of this same series. The synthesis of triazines is alsodescribed by F. C. Schaefer, U.S. Pat. No. 3,154,547 and by K. R.Huffman and F. C. Schaefer, J. Org. Chem., 28, 1816 (1963). Thesynthesis of the bicyclic aminopyrimidines have been disclosed inUnexamined European Patent No. 15,683 and are herein incorporated byreference.

Agriculturally suitable salts of compounds of Formula I are also usefulherbicides and can be prepared by a number of ways known to the art. Forexample, metal salts can be made by treating compounds of Formula I witha solution of alkali or alkaline earth metal salt having a sufficientlybasic anion (e.g., hydroxide, alkoxide, carbonate or hydride).Quaternary amine salts can be made by similar techniques.

Salts of compounds of Formula I can also be prepared by exchange of onecation to another. Cationic exchange can be effected by direct treatmentof an aqueous solution of a salt of a compound of Formula I (e.g.,alkali metal or quaternary amine salt) with a solution containing thecation to be exchanged. This method is most effective when the desiredsalt containing the exchanged cation is insoluble in water, e.g., acopper salt, and can be separated by filtration.

Exchange may also be effected by passing an aqueous solution of a saltof a compound of Formula I (e.g., an alkali metal or quaternary aminesalt) through a column packed with a cation exchange resin containingthe cation to be exchanged. In this method, the cation of the resin isexchanged for that of the original salt and the desired product iseluted from the column. This method is particularly useful when thedesired salt is water soluble, e.g., a potassium, sodium or calciumsalt.

Acid addition salts, useful in this invention, can be obtained byreacting a compound of Formula I with a suitable acid, e.g.,p-toluenesulfonic acid, trichloroacetic acid or the like.

The compounds of this invention and their preparation are furtherillustrated by the following examples wherein temperatures are given indegrees centigrade and parts by weight unless indicated otherwise.

The desired product is underscored at the top of each example.

EXAMPLE 1N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-formylbenzenesulfonamide

A mixture of 3.0 g of sodium bis(2-methoxyethoxy)aluminum hydride and0.9 g of morpholine in 25 ml of dry tetrahydrofuran was cooled to -40°C. and 1.0 g ofN-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamidewas added. The resulting clear homogeneous solution was allowed to warmto room temperature over a period of 2 hours. Dilute hydrochloric acidwas added and the mixture was extracted with methylene chloride. Theorganic extracts were washed, dried and evaporated. The crude product,which contained the desired aldehyde, the unreacted ester and theover-reduced alcohol, was purified by means of dry columnchromatography. The purified product had a m.p. of 180° C.

NMR(DMSO-d₆)δ: 3.95 (6H, pyrimidine OCH₃); 5.95 (1H, pyrimidine 5-H);7.6-8.4 (4H, aromatic); and 10.7 ##STR17##

EXAMPLE 2N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-ethenylbenzenesulfonamide

To a stirred mixture of 0.02 mol of n-butyllithium in 20 ml of anhydroustetrahydrofuran is added 3.6 g of triphenylmethylphosphonium bromide.The above solution is stirred at room temperature for 4 hours. A slurryof 3.7 g ofN-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-formylbenzenesulfonamidein 30 ml of dry tetrahydrofuran is then added dropwise. The resultingmixture is refluxed overnight and allowed to cool to room temperature.The precipitate is removed by suction filtration and washed withmethylene chloride. The combined filtrates are washed with dilutehydrochloric acid, water, dried and evaporated to dryness to yield thedesired product.

EXAMPLE 3N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-carboxybenzenesulfonamide

N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide(15 g) was added to a warm solution of 7.5 g of potassium hydroxide in7.5 ml of water and 60 ml of ethanol. The mixture was stirred at roomtemperature overnight and then poured into dilute hydrochloric acid. Thesolid was filtered, washed with water and dried to afford 12.5 g of thedesired product: m.p. 155°-157° C. IR (cm⁻¹) 3000, 1720.

NMR(DMSO-d₆)δ: 3.95 (6H, pyrimidine OCH₃); 5.8 (1H, pyrimidine 5-H);7.7-8.3 (4H, aromatic); and no ester OCH₃.

EXAMPLE 4N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-acetylbenzenesulfonamide

A methyllithium solution in ether (1.4M, 40 ml) was added to a solutionof 1.0 g ofN-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-carboxybenzenesulfonamidein 50 ml of dry tetrahydrofuran at room temperature. The resultingyellow slurry was stirred for 4 hours and the dilute hydrochloric acidwas added. The mixture was then extracted with methylene chloride. Theorganic extracts were washed, dried, and evaporated in vacuo to dryness.The crude product was purified by preparative TLC, eluted with ethylacetate/hexane (1:1), m.p. 126°-128° C.

EXAMPLE 5N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-isopropenylbenzenesulfonamide

To a stirred mixture of 0.02 mol of n-butyllithium in 20 ml of anhydroustetrahydrofuran is added 3.6 g of triphenylmethylphosphonium bromide.The above solution is stirred at room temperature for 4 hours. A slurryof 3.8 g ofN-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-acetylbenzenesulfonamidein 30 ml of dry tetrahydrofuran is then added dropwise. The resultingmixture is refluxed overnight and allowed to cool to room temperature.The precipitate is removed by suction filtration and washed withmethylene chloride. The combined filtrates are then washed with dilutedhydrochloric acid, water, dried and evaporated to dryness to yield thedesired product.

EXAMPLE 6N-[(4,6-Dichloro-1,3,5-triazin-2-yl)aminocarbonyl]-2-ethenylbenzenesulfonamide

A solution of 4,6-dichloro-1,3,5-triazin-2-yl isocyanate (0.87 g, 4.5mmol) in acetonitrile (9 ml) is contacted with2-ethenylbenzenesulfonamide (0.83 g, 4.5 mmol) and stirred for 16 hours.The mixture is then evaporated under reduced pressure to yield the titlecompound which is used directly in subsequent reactions.

EXAMPLE 7N-[(4,6-Dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-ethenylbenzenesulfonamide

The crude2-ethenyl-N-[(4,6-dichloro-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamideof Example 6 is contacted with methanol (10 ml) and then with a solutionof sodium methoxide (14 mmol) in methanol. The mixture is then stirredat room temperature for 1.5 hours and evaporated to dryness.Subsequently, the residue is taken up in water, filtered to removeunwanted solids, and acidified to precipitate the product. Thecrystalline product obtained can be purified by chromatography on silicagel or recrystallization to yield the title compound.

EXAMPLE 8 2-(1-Cyclopentenyl)benzenesulfonamide

A mixture of benzenesulfonic acid lithium salt (32.8 g, 0.20 mmol) and500 ml THF was stirred in an ice bath while 138 ml (0.22 mol) ofn-butyllithium solution (1.6M in hexane) was added. After stirring atroom temperature for 1 hour the mixture was recooled to 0° andcyclopentanone (16.8 g, 0.20 mmol) was added dropwise; the reactionmixture was allowed to warm to ambient temperature and stirred for 24hours. The precipitated product was collected by filtration and dried ina vacuum oven to yield 39.8 g of2-(1-hydroxycyclopent-1-yl)benzenesulfonic acid dilithium salt.

This dilithium salt (33.1 g) was contacted with 400 ml of thionylchloride plus 10 ml of N,N-dimethylformamide in an ice bath. Afterstirring for 1 hour in the ice bath the mixture was warmed to roomtemperature and filtered to remove inorganic by-products. The thionylchloride was then stripped under reduced pressure to yield crude2-(1-cyclopentenyl)benzenesulfonyl chloride which was used directly.

The sulfonyl chloride was dissolved in THF (500 ml) and concentratedammonium hydroxide was added with external cooling at 0°-10° until theexotherm was no longer observed. The mixture was stirred at 0° for 1hour then diluted with water and acidified to pH=3 with concentratedhydrochloric acid and extracted with methylene chloride. The extract wasdried (Na₂ SO₄), evaporated and triturated with chlorobutane to removeinsoluble by-products by filtration. The residue from the chlorobutanefiltrate was chromatographed on silica gel in 25% ethyl acetate inhexanes then crystallized from benzene to yield 5.7 g of a white powder,m.p. 112°-113° C.

NMR (CDCl₃)δ: 2.0 (2H, methylene); 2.3-2.9 (4H, methylenes); 6.0 (1H,olefinic); 7.3-7.6 (3H, aromatic); 8.0 (1H, aromatic); 5.1 (2H,sulfonamide).

EXAMPLE 9 2-(1-Cyclopentenyl)benzenesulfonyl Isocyanate

A solution of 2.5 g of 2-(1-cyclopentenyl)benzenesulfonamide in 20 ml ofxylenes was contacted with 1.4 g of n-butylisocyanate and a trace amount(ca. 20 mg) of DABCO then heated to reflux of 139°. Liquified phosgene(1.2 ml) was then added thereby reducing the temperature and refluxcontinued until the boiling point of the mixture stopped rising towardsthe original 139° (ca. 15 min. required), which indicated a completereaction. The solution was then evaporated under reduced pressure toyield an oil. The infrared spectrum exhibited the characteristic 2220cm⁻¹ band indicating the presence of the title compound which was useddirectly.

EXAMPLE 102-(1-Cyclopentenyl)-N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide

A mixture of 2-amino-4-methoxy-6-methylpyrimidine (0.45 g, 3.2 mmol),methylene chloride and DABCO (ca. 10 mg) was contacted with2-(1-cyclopentenyl)benzenesulfonyl isocyanate in methylene chloridesolution at ambient temperature. After approximately 20 minutes theproduct crystallized from the reaction mixture and was collected byfiltration and rinsed with ether. In this manner, 0.35 g of product wasobtained, m.p. 235°-236°. The infrared spectrum exhibited a carbonylabsorption at 1710 cm⁻¹ indicating the title compound.

EXAMPLE 11 3,3-Dimethyl-3H-1,2-benzoxathiole, 1,1-Dioxide

To a suspension of o-sulfobenzoic acid cyclic anhydride (Aldrich Chem.Co.) (55 g. 0.30 mmol) in ether (300 ml) was added a solution ofmethyllithium in ether (600 ml, 0.72 mmol) dropwise at a controlled rateto maintain a constant reflux. After addition was complete the mixturewas refluxed for an additional 30 minutes then poured into a mixture of400 g ice and 30 ml concentrated hydrochloric acid. The ether layer wasseparated and the aqueous phase was heated on a steam bath forapproximately 1 hour then the solid which had formed was extracted withmethylene chloride and evaporated to dryness. The solid product whichwas obtained (6.0 g) had a m.p. of 98°-100°.

NMR (DMSO-d₆)δ: 1.78 (6H, dimethyl); 7.4-8.0 (4H, aromatic).

EXAMPLE 12 Potassium 2-(1-methylethenyl)benzenesulfonate

Potassium tert-butoxide (1.0 g, 9.3 mmol) was dissolved in 20 ml oftert-butanol at 60°. This solution was mixed with3,3-dimethyl-1,2-benzoxathiole, 1,1-dioxide (1.2 g, 6.3 mmol) and heatedto reflux for 3 hours during which time the mixture became homogeneous;subsequently, a precipitate formed. The resulting yellow solid was thencollected by filtration and rinsed with methylene chloride to yield 1.4g of the title compound, m.p. >300°, of about 90% purity.

NMR (DMSO-d₆)δ: 2.10 (3H, methyl); 4.72 (1H, olefinic); 4.93 (1H,olefinic); 7.0-7.9 (4-H, aromatic).

EXAMPLE 13 2-(1-Methylethenyl)benzenesulfonyl Chloride

A mixture of potassium 2-(1-methylethenyl)benzenesulfonate (7.8 g, 0.33mmol) and 30 ml of thionyl chloride was contacted with 1.5 ml ofN,N-dimethylformamide at 0°. The mixture was allowed to warm to roomtemperature over 45 minutes then evaporated in vacuo. Water and etherwere added and the aqueous phase extracted with several portions ofether. The combined ether layers were washed with saturated sodiumchloride solution, dried and evaporated under reduced pressure to yieldthe title compound as an oil.

NMR (CDCl₃)δ: 2.20 (3H, methyl); 5.02 (1H, olefinic); 5.30 (1H,olefinic); 7.3-8.0 (3H, aromatic); 8.2 (1H, aromatic).

EXAMPLE 14 2-(1-Methylethenyl)benzenesulfonamide

A solution of anhydrous ammonia (1 ml, 40 mmol) in ether (25 ml) wascooled to 0° and to this was added 2-(1-methylethenyl)benzenesulfonylchloride of Example 13 (2.9 g, 13 mmol). After stirring for 2 hours at0° to 5° the ammonium chloride was removed by filtration of the filtrateconcentrated to an oil which crystallized on standing to give 2.6 g ofthe title compound, m.p. 76°-85°.

NMR (CDCl₃)δ: 2.18 (3H, methyl); 5.00 (1H, olefinic); 5.26 (1H,olefinic); 5.20 (2H, sulfonamide); 7.1-7.8 (3H, aromatic); 8.03 (1H,aromatic 6-H).

EXAMPLE 15 2-(1-Methylethenyl)benzenesulfonyl Isocyanate

To a refluxing mixture of 2-(1-methylethenyl)benzenesulfonamide (2.6 g,12 mmol) and n-butylisocyanate (1.4 g, 14 mmol) in 20 ml xylenes plus atrace of DABCO (ca. 20 mg) was added liquified phosgene (1.2 ml, 16mmol) dropwise at 139°. Refluxing was continued for 2 hours, and thesolvent was removed in vacuo to give an oil. The infrared spectrum ofthe oil product exhibited a band at 2220 cm⁻¹ indicating the titlecompound which was stored as a solution in methylene chloride.

EXAMPLE 16N-[(4,6-Dimethylpyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide

A solution of 2-(1-methylethenyl)benzenesulfonyl isocyanate in methylenechloride (0.9 g, 4 mmol active ingredient) was added via syringe to anitrogen purged flask containing a 2-amino-4,6-dimethylpyrimidine and atrace (ca. 10 mg) of DABCO. The mixture was heated to reflux for 3 hoursthen stirred at room temperature overnight. Evaporation of the mixtureleft a semisolid residue that was triturated with ether and filtered. Inthis manner 0.95 g of the title compound was obtained, m.p. 177°-183°.

NMR (DMSO-₆)δ: 2.03 (3H, methyl); 2.40 (6H, dimethyl); 5.15 (1H,olefinic); 4.80 (1H, olefinic); 7.05 (1H, pyrimidine-5H); 7.1-7.8 (3H,aromatic); 8.13 (1H, aromatic-6H); 10.5 (1H, urea H).

Using the procedure of Examples 1 through 16 and the appropriatereactants and methods described therein, the compounds of Tables Ithrough V may be prepared.

                                      TABLE Ia                                    __________________________________________________________________________     ##STR18##                                                                    R.sub.2    R.sub.1                                                                             X     Y    Z        m.p.                                     __________________________________________________________________________    CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           CH.sub.3                                                                           N        165-167°                          C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          N        160-165°                          C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub. 2                                                                     H     CH.sub.3                                                                            CH.sub.3                                                                           CH       177-183°                          C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          CH       184-190°                          C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH       201-211°                          CHCH.sub.2 5-Cl  CH.sub.2 OCH.sub.3                                                                  OCH.sub.3                                                                          CH                                                CHCHCH.sub.3                                                                             H     CH.sub.3                                                                            OC.sub.2 H.sub.5                                                                   N                                                 CHCHC.sub.2 H.sub.5                                                                      6-Br  OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                CHCH(CH.sub.2).sub.2 CH.sub.3                                                            4-F   H     OCH.sub.3                                                                          CH                                                CHCHCH(CH.sub.3).sub.2                                                                   5-NO.sub.2                                                                          Cl    CH.sub.3                                                                           CH                                                CHC(CH.sub.3).sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHC(CH.sub.3)C.sub.2 H.sub.5                                                             5-CF.sub.3                                                                          CH.sub.3                                                                            OCH.sub.3                                                                          CCl                                               CClCCl.sub.2                                                                             H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCCl.sub.2                                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                CClCHCl    H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHCHCl     5-C(CH.sub.3).sub.3                                                                 CH.sub.3                                                                            NH.sub.2                                                                           N                                                 CHCHCCl.sub.3                                                                            6-CH.sub.3                                                                          CH.sub.3                                                                            NHCH.sub.3                                                                         N                                                 CHCClCHCl.sub.2                                                                          3-OCH.sub.3                                                                         CH.sub.3                                                                            N(CH.sub.3).sub.2                                                                  CH                                                CClCClCH.sub.2 Cl                                                                        5-OCF.sub.3                                                                         OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                C(CH.sub.3)CHC.sub.2 H.sub.5                                                             H     OCH.sub.3                                                                           OCH.sub.3                                                                          CBr                                               C(CH.sub.3)C(CH.sub.3).sub.2                                                             H     OCH.sub.3                                                                           CH.sub.3                                                                           OCN                                               C(CH.sub.3)CHCH.sub.3                                                                    5-OC.sub.3 H.sub.7                                                                  CH.sub.3                                                                            CH.sub.3                                                                           OCH.sub.3                                         C(C.sub.2 H.sub.5)CH.sub.2                                                               H     OCH.sub.3                                                                           CH.sub.3                                                                           OC.sub.2 H.sub.5                                  C(C.sub.2).sub.5)CHCH.sub.3                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          OCH.sub.2 CH.sub.2 Cl                             C(C.sub.2 H.sub.5)CHCH.sub.3                                                             6-OC.sub.2 H.sub.5                                                                  OCH.sub.3                                                                           OCH.sub.3                                                                          OCH.sub.2 CHCH.sub.2                               ##STR19## H     CH.sub.3                                                                            CH.sub.3                                                                           CH       206-208°                           ##STR20## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH       235-236°                           ##STR21## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH       182-185°                           ##STR22## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR23## H     OCH.sub.3                                                                           CH.sub.3                                                                           N        >250°                              ##STR24## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N        162-165°                           ##STR25## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR26## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR27## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR28## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR29## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR30## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR31## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR32## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR33## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR34## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR35## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR36## H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     Cl    CH.sub.3                                                                           N                                                 __________________________________________________________________________

                                      TABLE Ib                                    __________________________________________________________________________     ##STR37##                                                                    R.sub.2    R.sub.1                                                                             X     Y    Z        m.p.                                     __________________________________________________________________________    CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 5-Cl  CH.sub.2 OCH.sub.3                                                                  OCH.sub.3                                                                          CH                                                CHCHCH.sub.3                                                                             H     CH.sub.3                                                                            OC.sub.2 H.sub.5                                                                   N                                                 CHCHC.sub.2 H.sub.5                                                                      6-Br  OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                CHCH(CH.sub.2).sub.2 CH.sub.3                                                            4-F   H     OCH.sub.3                                                                          CH                                                CHCHCH(CH.sub.3).sub.2                                                                   5-NO.sub.2                                                                          Cl    CH.sub.3                                                                           CH                                                CHC(CH.sub.3).sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHC(CH.sub.3)C.sub.2 H.sub.5                                                             5-CF.sub.3                                                                          CH.sub.3                                                                            OCH.sub.3                                                                          CCl                                               CClCCl.sub.2                                                                             H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCCl.sub.2                                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                CClCHCl    H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHCHCl     5-C(CH.sub.3).sub.3                                                                 CH.sub.3                                                                            NH.sub.2                                                                           N                                                 CHCHCCl.sub.3                                                                            6-CH.sub.3                                                                          CH.sub.3                                                                            NHCH.sub.3                                                                         N                                                 CHCClCHCl.sub.2                                                                          3-OCH.sub.3                                                                         CH.sub.3                                                                            N(CH.sub.3).sub.2                                                                  CH                                                CClCClCH.sub.2 Cl                                                                        5-OCF.sub.3                                                                         OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                C(CH.sub.3)CHC.sub.2 H.sub.5                                                             H     OCH.sub.3                                                                           OCH.sub.3                                                                          CBr                                               C(CH.sub.3)C(CH.sub.3).sub.2                                                             H     OCH.sub.3                                                                           CH.sub.3                                                                           OCN                                               C(CH.sub.3)CHCH.sub.3                                                                    5-OC.sub.3 H.sub.7                                                                  CH.sub.3                                                                            CH.sub.3                                                                           OCH.sub. 3                                        C(C.sub.2 H.sub.5)CH.sub.2                                                               H     OCH.sub.3                                                                           CH.sub.3                                                                           OC.sub.2 H.sub.5                                  C(C.sub.2).sub.5)CHCH.sub.3                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          OCH.sub.2 CH.sub.2 Cl                             C(C.sub.2 H.sub.5)CHCH.sub.3                                                             6-OC.sub.2 H.sub.5                                                                  OCH.sub.3                                                                           OCH.sub.3                                                                          OCH.sub.2 CHCH.sub.2                               ##STR38## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR39## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR40## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR41## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR42## H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                  ##STR43## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR44## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR45## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR46## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR47## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR48## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR49## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR50## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR51## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR52## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR53## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR54## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR55## H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     Cl    CH.sub.3                                                                           N                                                 __________________________________________________________________________

                                      TABLE Ic                                    __________________________________________________________________________     ##STR56##                                                                    R.sub.2    R.sub.1                                                                             X     Y    Z        m.p.                                     __________________________________________________________________________    CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 5-Cl  CH.sub.2 OCH.sub.3                                                                  OCH.sub.3                                                                          CH                                                CHCHCH.sub.3                                                                             H     CH.sub.3                                                                            OC.sub.2 H.sub.5                                                                   N                                                 CHCHC.sub.2 H.sub.5                                                                      6-Br  OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                CHCH(CH.sub.2).sub.2 CH.sub.3                                                            4-F   H     OCH.sub.3                                                                          CH                                                CHCHCH(CH.sub.3).sub.2                                                                   5-NO.sub.2                                                                          Cl    CH.sub.3                                                                           CH                                                CHC(CH.sub.3).sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHC(CH.sub.3)C.sub.2 H.sub.5                                                             5-CF.sub.3                                                                          CH.sub.3                                                                            OCH.sub.3                                                                          CCl                                               CClCCl.sub.2                                                                             H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCCl.sub.2                                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                CClCHCl    H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHCHCl     5-C(CH.sub.3).sub.3                                                                 CH.sub.3                                                                            NH.sub.2                                                                           N                                                 CHCHCCl.sub.3                                                                            6-CH.sub.3                                                                          CH.sub.3                                                                            NHCH.sub.3                                                                         N                                                 CHCClCHCl.sub.2                                                                          3-OCH.sub.3                                                                         CH.sub.3                                                                            N(CH.sub.3).sub.2                                                                  CH                                                CClCClCH.sub.2 Cl                                                                        5-OCF.sub.3                                                                         OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                C(CH.sub.3)CHC.sub.2 H.sub.5                                                             H     OCH.sub.3                                                                           OCH.sub.3                                                                          CBr                                               C(CH.sub.3)C(CH.sub.3).sub.2                                                             H     OCH.sub.3                                                                           CH.sub.3                                                                           OCN                                               C(CH.sub.3)CHCH.sub.3                                                                    5-OC.sub.3 H.sub.7                                                                  CH.sub.3                                                                            CH.sub. 3                                                                          OCH.sub.3                                         C(C.sub.2 H.sub.5)CH.sub.2                                                               H     OCH.sub.3                                                                           CH.sub.3                                                                           OC.sub.2 H.sub.5                                  C(C.sub.2).sub.5)CHCH.sub.3                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          OCH.sub.2 CH.sub.2 Cl                             C(C.sub.2 H.sub.5)CHCH.sub.3                                                             6-OC.sub.2 H.sub.5                                                                  OCH.sub.3                                                                           OCH.sub.3                                                                          OCH.sub.2 CHCH.sub.2                               ##STR57## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR58## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR59## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR60## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR61## H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                  ##STR62## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR63## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR64## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR65## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR66## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR67## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR68## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR69## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR70## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR71## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR72## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR73## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR74## H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     Cl    CH.sub.3                                                                           N                                                 __________________________________________________________________________

                                      TABLE Id                                    __________________________________________________________________________     ##STR75##                                                                    R.sub.2    R.sub.1                                                                             X     Y    Z        m.p.                                     __________________________________________________________________________    CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCH.sub.2 H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 CHCH.sub.2 H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 CHCH.sub.2 H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                 C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                 C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                C(CH.sub.3)CH.sub.2                                                                      H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                CHCH.sub.2 5-Cl  CH.sub.2 OCH.sub.3                                                                  OCH.sub.3                                                                          CH                                                CHCHCH.sub.3                                                                             H     CH.sub.3                                                                            OC.sub.2 H.sub.5                                                                   N                                                 CHCHC.sub.2 H.sub.5                                                                      6-Br  OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                CHCH(CH.sub.2).sub.2 CH.sub.3                                                            4-F   H     OCH.sub.3                                                                          CH                                                CHCHCH(CH.sub.3).sub.2                                                                   5-NO.sub.2                                                                          Cl    CH.sub.3                                                                           CH                                                CHC(CH.sub.3).sub.2                                                                      H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHC(CH.sub.3)C.sub.2 H.sub.5                                                             5-CF.sub.3                                                                          CH.sub.3                                                                            OCH.sub.3                                                                          CCl                                               CClCCl.sub.2                                                                             H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                CHCCl.sub.2                                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                CClCHCl    H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                 CHCHCl     5-C(CH.sub.3).sub.3                                                                 CH.sub.3                                                                            NH.sub.2                                                                           N                                                 CHCHCCl.sub.3                                                                            6-CH.sub.3                                                                          CH.sub.3                                                                            NHCH.sub.3                                                                         N                                                 CHCClCHCl.sub.2                                                                          3-OCH.sub.3                                                                         CH.sub.3                                                                            N(CH.sub.3).sub.2                                                                  CH                                                CClCClCH.sub.2 Cl                                                                        5-OCF.sub.3                                                                         OCH.sub.2 CF.sub.3                                                                  CH.sub.3                                                                           CH                                                C(CH.sub.3)CHC.sub.2 H.sub.5                                                             H     OCH.sub.3                                                                           OCH.sub.3                                                                          CBr                                               C(CH.sub.3)C(CH.sub.3).sub.2                                                             H     OCH.sub.3                                                                           CH.sub.3                                                                           OCN                                               C(CH.sub.3)CHCH.sub.3                                                                    5-OC.sub.3 H.sub.7                                                                  CH.sub.3                                                                            CH.sub. 3                                                                          OCH.sub.3                                         C(C.sub.2 H.sub.5)CH.sub.2                                                               H     OCH.sub.3                                                                           CH.sub.3                                                                           OC.sub.2 H.sub.5                                  C(C.sub.2).sub.5)CHCH.sub.3                                                              H     CH.sub.3                                                                            OCH.sub.3                                                                          OCH.sub.2 CH.sub.2 Cl                             C(C.sub.2 H.sub.5)CHCH.sub.3                                                             6-OC.sub.2 H.sub.5                                                                  OCH.sub.3                                                                           OCH.sub.3                                                                          OCH.sub.2 CHCH.sub.2                               ##STR76## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR77## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR78## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR79## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR80## H     OCH.sub.3                                                                           CH.sub.3                                                                           N                                                  ##STR81## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR82## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR83## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR84## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR85## H     CH.sub.3                                                                            CH.sub.3                                                                           N                                                  ##STR86## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR87## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR88## H     CH.sub.3                                                                            CH.sub.3                                                                           CH                                                 ##STR89## H     CH.sub.3                                                                            OCH.sub.3                                                                          CH                                                 ##STR90## H     CH.sub.3                                                                            OCH.sub.3                                                                          N                                                  ##STR91## H     OCH.sub.3                                                                           OCH.sub.3                                                                          N                                                  ##STR92## H     OCH.sub.3                                                                           OCH.sub.3                                                                          CH                                                 ##STR93## H     OCH.sub.3                                                                           CH.sub.3                                                                           CH                                                C(CH.sub.3)CH.sub.2                                                                      H     Cl    CH.sub.3                                                                           N                                                 __________________________________________________________________________

                  TABLE IIa                                                       ______________________________________                                         ##STR94##                                                                    R.sub.2       R.sub.1   Y.sub.1  Q    m.p.                                    ______________________________________                                        CHCH.sub.2    H         CH.sub.3 CH.sub.2                                     CHCH.sub.2    H         OCH.sub.3                                                                              CH.sub.2                                     C(CH.sub.3)CH.sub.2                                                                         H         CH.sub.3 CH.sub.2                                     C(CH.sub.3)CH.sub.2                                                                         H         OCH.sub.3                                                                              CH.sub.2                                     CHCHCH.sub.3  H         CH.sub.3 CH.sub.2                                     CHCHCH.sub.3  H         OCH.sub.3                                                                              CH.sub.2                                     CHC(CH.sub.3).sub.2                                                                         H         CH.sub.3 CH.sub.2                                     CHC(CH.sub.3).sub.2                                                                         H         OCH.sub.3                                                                              CH.sub.2                                     CHCHC.sub.2 H.sub.5                                                                         H         H        CH.sub.2                                     CHCHC.sub.2 H.sub.5                                                                         5-Cl      Cl       CH.sub.2                                     CHC(CH.sub.3)C.sub.2 H.sub.5                                                                H         CH.sub.3 CH.sub.2                                     C(CH.sub.3)CHCH.sub.3                                                                       H         OCH.sub.3                                                                              CH.sub.2                                     C(CH.sub.3)C(CH.sub.3).sub.2                                                                H         CH.sub.3 CH.sub.2                                      ##STR95##    H         OCH.sub.3                                                                              CH.sub.2                                      ##STR96##    H         CH.sub.3 CH.sub.2                                      ##STR97##    H         OCH.sub.3                                                                              CH.sub.2                                      ##STR98##    H         H        CH.sub.2                                     C(CH.sub.3)CH.sub.2                                                                         H         Cl       CH.sub.2                                      ##STR99##    5-CF.sub.3                                                                              CH.sub.3 CH.sub.2                                      ##STR100##   H         CH.sub.3 CH.sub.2                                     CHCH.sub.2    H         CH.sub.3 O                                            CHCH.sub.2    H         OCH.sub.3                                                                              O                                            C(CH.sub.3)CH.sub.2                                                                         H         CH.sub.3 O                                            C(CH.sub.3)CH.sub.2                                                                         H         OCH.sub.3                                                                              O                                            CHCHCH.sub.3  H         CH.sub.3 O                                            CHCHCH.sub.3  H         OCH.sub.3                                                                              O                                            CHC(CH.sub.3).sub.2                                                                         H         CH.sub.3 O                                            CHC(CH.sub.3).sub.2                                                                         H         OCH.sub.3                                                                              O                                            CHCHC.sub.2 H.sub.5                                                                         H         H        O                                            CHCHC.sub.2 H.sub.5                                                                         5-Cl      Cl       O                                            CHC(CH.sub.3)C.sub.2 H.sub.5                                                                H         CH.sub.3 O                                            C(CH.sub.3)CHCH.sub.3                                                                       H         OCH.sub.3                                                                              O                                            C(CH.sub.3)C(CH.sub.3).sub.2                                                                H         CH.sub.3 O                                             ##STR101##   H         OCH.sub.3                                                                              O                                             ##STR102##   H         CH.sub.3 O                                             ##STR103##   H         OCH.sub.3                                                                              O                                             ##STR104##   H         H        O                                            C(CH.sub.3)CH.sub.2                                                                         H         Cl       O                                             ##STR105##   5-CF.sub.3                                                                              CH.sub.3 O                                             ##STR106##   H         CH.sub.3 O                                            ______________________________________                                    

                  TABLE IIb                                                       ______________________________________                                         ##STR107##                                                                   R.sub.2     R.sub.1 R.sub.5 R.sub.6                                                                             Y.sub.1                                                                              Q                                    ______________________________________                                        CHCH.sub.2  H       H       H     CH.sub.3                                                                             CH.sub.2                             CHCH.sub.2  H       H       CH.sub.3                                                                            OCH.sub.3                                                                            CH.sub.2                             C(CH.sub.3)CH.sub.2                                                                       H       CH.sub.3                                                                              CH.sub.3                                                                            CH.sub.3                                                                             CH.sub.2                             C(CH.sub.3)CH.sub.2                                                                       H       H       H     OCH.sub.3                                                                            CH.sub.2                             CHCHCH.sub.3                                                                              H       H       CH.sub.3                                                                            CH.sub.3                                                                             CH.sub.2                             CHCHCH.sub.3                                                                              H       H       CH.sub.3                                                                            OCH.sub.3                                                                            CH.sub.2                             CHC(CH.sub.3).sub.2                                                                       H       H       H     CH.sub.3                                                                             CH.sub.2                             CHC(CH.sub.3).sub.2                                                                       H       CH.sub.3                                                                              CH.sub.3                                                                            OCH.sub.3                                                                            CH.sub.2                             CHCHC.sub.2 H.sub.5                                                                       6-F     H       CH.sub.3                                                                            CH.sub.3                                                                             CH.sub.2                             CHCHC.sub.2 H.sub.5                                                                       H       H       CH.sub.3                                                                            OCH.sub.3                                                                            CH.sub.2                             CHC(CH.sub.3)C.sub.2 H.sub.5                                                              H       H       H     CH.sub.3                                                                             CH.sub.2                             C(CH.sub.3)CHCH.sub.3                                                                     H       H       H     OCH.sub.3                                                                            CH.sub.2                             C(CH.sub.3)C(CH.sub.3).sub.2                                                              H       H       H     CH.sub.3                                                                             CH.sub.2                              ##STR108## H       H       CH.sub.3                                                                            OCH.sub.3                                                                            CH.sub.2                              ##STR109## H       H       CH.sub.3                                                                            Cl     CH.sub.2                              ##STR110## H       CH.sub.3                                                                              H     CH.sub.3                                                                             CH.sub.2                              ##STR111## H       H       H     H      CH.sub.2                             C(CH.sub.3)CHCH.sub.2                                                                     H       H       H     OCH.sub.3                                                                            CH.sub.2                              ##STR112## 5-NO.sub.2                                                                            H       H     CH.sub.3                                                                             CH.sub.2                              ##STR113## H       H       H     CH.sub.3                                                                             CH.sub.2                             CHCH.sub.2  H       H       H     CH.sub.3                                                                             O                                    CHCH.sub.2  H       H       CH.sub.3                                                                            OCH.sub.3                                                                            O                                    C(CH.sub.3)CH.sub.2                                                                       H       CH.sub.3                                                                              CH.sub.3                                                                            CH.sub.3                                                                             O                                    C(CH.sub.3)CH.sub.2                                                                       H       H       H     OCH.sub.3                                                                            O                                    CHCHCH.sub.3                                                                              H       H       CH.sub.3                                                                            CH.sub.3                                                                             O                                    CHCHCH.sub.3                                                                              H       H       CH.sub.3                                                                            OCH.sub.3                                                                            O                                    CHC(CH.sub.3).sub.2                                                                       H       H       H     CH.sub.3                                                                             O                                    CHC(CH.sub.3).sub.2                                                                       H       CH.sub.3                                                                              CH.sub.3                                                                            OCH.sub.3                                                                            O                                    CHCHC.sub.2 H.sub.5                                                                       6-F     H       CH.sub.3                                                                            CH.sub.3                                                                             O                                    CHCHC.sub.2 H.sub.5                                                                       H       H       CH.sub.3                                                                            OCH.sub.3                                                                            O                                    CHC(CH.sub.3)C.sub.2 H.sub.5                                                              H       H       H     CH.sub.3                                                                             O                                    C(CH.sub.3)CHCH.sub.3                                                                     H       H       H     OCH.sub.3                                                                            O                                    C(CH.sub.3)C(CH.sub.3).sub.2                                                              H       H       H     CH.sub.3                                                                             O                                     ##STR114## H       H       CH.sub.3                                                                            OCH.sub.3                                                                            O                                     ##STR115## H       H       CH.sub.3                                                                            Cl     O                                     ##STR116## H       CH.sub.3                                                                              H     CH.sub.3                                                                             O                                     ##STR117## H       H       H     H      O                                    C(CH.sub.3)CHCH.sub.2                                                                     H       H       H     OCH.sub.3                                                                            O                                     ##STR118## 5-NO.sub.2                                                                            H       H     CH.sub.3                                                                             O                                     ##STR119## H       H       H     CH.sub.3                                                                             O                                    ______________________________________                                    

                  TABLE IIIa                                                      ______________________________________                                         ##STR120##                                                                   R.sub.2        R.sub.1       Y.sub.1                                          ______________________________________                                        CHCH.sub.2     H             CH.sub.3                                         CHCH.sub.2     H             OCH.sub.3                                        C(CH.sub.3)CH.sub.2                                                                          H             CH.sub.3                                         C(CH.sub.3)CH.sub.2                                                                          H             OCH.sub.3                                        CHCHCH.sub.3   H             CH.sub.3                                         CHCHCH.sub.3   H             OCH.sub.3                                        CHC(CH.sub.3).sub.2                                                                          H             CH.sub.3                                         CHC(CH.sub.3).sub.2                                                                          H             OCH.sub.3                                        CHCHC.sub.2 H.sub.5                                                                          H             H                                                CHCHC.sub.2 H.sub.5                                                                          5-Cl          Cl                                               CHC(CH.sub.3)C.sub.2 H.sub.5                                                                 H             CH.sub.3                                         C(CH.sub.3)CHCH.sub.3                                                                        H             OCH.sub.3                                        C(CH.sub.3)C(CH.sub.3).sub.2                                                                 H             CH.sub.3                                          ##STR121##    H             OCH.sub.3                                         ##STR122##    H             CH.sub.3                                          ##STR123##    H             OCH.sub.3                                         ##STR124##    H             H                                                C(CH.sub.3)CH.sub.2                                                                          H             Cl                                                ##STR125##    5-CF.sub.3    CH.sub.3                                          ##STR126##    H             CH.sub.3                                         ______________________________________                                    

                  TABLE IIIb                                                      ______________________________________                                         ##STR127##                                                                   R.sub.2       R.sub.1   R.sub.5 R.sub.6                                                                             Y.sub.1                                 ______________________________________                                        CHCH.sub.2    H         H       H     CH.sub.3                                CHCH.sub.2    H         H       CH.sub.3                                                                            OCH.sub.3                               C(CH.sub.3)CH.sub.2                                                                         H         CH.sub.3                                                                              CH.sub.3                                                                            CH.sub.3                                C(CH.sub.3)CH.sub.2                                                                         H         H       H     OCH.sub.3                               CHCHCH.sub.3  H         H       CH.sub.3                                                                            CH.sub.3                                CHCHCH.sub.3  H         H       CH.sub.3                                                                            OCH.sub.3                               CHC(CH.sub.3).sub.2                                                                         H         H       H     CH.sub.3                                CHC(CH.sub.3).sub.2                                                                         H         CH.sub.3                                                                              CH.sub.3                                                                            OCH.sub.3                               CHCHC.sub.2 H.sub.5                                                                         6-F       H       CH.sub.3                                                                            CH.sub.3                                CHCHC.sub.2 H.sub.5                                                                         H         H       CH.sub.3                                                                            OCH.sub.3                               CHC(CH.sub.3)C.sub.2 H.sub.5                                                                H         H       H     CH.sub.3                                C(CH.sub.3)CHCH.sub.3                                                                       H         H       H     OCH.sub. 3                              C(CH.sub.3)C(CH.sub.3).sub.2                                                                H         H       H     CH.sub.3                                 ##STR128##   H         H       CH.sub.3                                                                            OCH.sub.3                                ##STR129##   H         H       CH.sub.3                                                                            Cl                                       ##STR130##   H         CH.sub.3                                                                              H     CH.sub.3                                 ##STR131##   H         H       H     H                                       C(CH.sub.3)CHCH.sub.2                                                                       H         H       H     OCH.sub.3                                ##STR132##   5-NO.sub.2                                                                              H       H     CH.sub.3                                 ##STR133##   H         H       H     CH.sub.3                                ______________________________________                                    

                  TABLE IVa                                                       ______________________________________                                         ##STR134##                                                                   R.sub.2        R.sub.1    X.sub.2  Y.sub.2                                    ______________________________________                                        CHCH.sub.2     H          CH.sub.3 CH.sub.3                                   CHCHCH.sub.3   H          CH.sub.3 OCH.sub.3                                  C(CH.sub.3)CH.sub.2                                                                          H          OCH.sub.3                                                                              OCH.sub.3                                  C(CH.sub.3)CH.sub.2                                                                          H          CH.sub.3 CH.sub.3                                   C(CH.sub.3)CH.sub.2                                                                          H          CH.sub.3 OCH.sub.3                                  C(CH.sub.3)CH.sub.2                                                                          H          OCH.sub.3                                                                              OCH.sub.3                                  CHCHC.sub.2 H.sub.5                                                                          5-Br       CH.sub.3 CH.sub.3                                   CClCHCl        H          CH.sub.3 OCH.sub.3                                  C(CH.sub.3)CHC.sub.2 H.sub.5                                                                 H          OCH.sub.3                                                                              OCH.sub.3                                   ##STR135##    H          OCH.sub.3                                                                              CH.sub.3                                    ##STR136##    H          CH.sub.3 CH.sub.3                                    ##STR137##    H          OCH.sub.3                                                                              OCH.sub.3                                   ##STR138##    H          OCH.sub.3                                                                              CH.sub.3                                    ##STR139##    3-OCH.sub.3                                                                              CH.sub.3 CH.sub.3                                    ##STR140##    H          OCH.sub.3                                                                              OCH.sub.3                                  ______________________________________                                    

                  TABLE IVb                                                       ______________________________________                                         ##STR141##                                                                   R.sub.2      R.sub.1  R.sub.5                                                                              R.sub.6                                                                            X.sub.2                                                                              Y.sub.2                              ______________________________________                                        CHCH.sub.2   H        H      H    CH.sub.3                                                                             CH.sub.3                             CHCH.sub.2   H        CH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3                                                                             OCH.sub.3                            CHCHCH.sub.3 H        H      H    OCH.sub.3                                                                            CH.sub.3                             CHCHCH.sub.3 H        H      CH.sub.3                                                                           OCH.sub.3                                                                            CH.sub.3                             C(CH.sub.3)CH.sub.2                                                                        H        H      H    CH.sub.3                                                                             OCH.sub.3                            C(CH.sub.3)CH.sub.2                                                                        H        H      H    OCH.sub.3                                                                            OCH.sub.3                            C(CH.sub.3)CH.sub.2                                                                        5-NO.sub.2                                                                             H      H    CH.sub.3                                                                             CH.sub.3                             C(CH.sub.3)CHCH.sub.3                                                                      H        H      H    CH.sub.3                                                                             OCH.sub.3                            CHCH(CH.sub.2).sub.2 CH.sub.3                                                              H        CH.sub.3                                                                             H    OCH.sub.3                                                                            CH.sub.3                             CH C(CH.sub.3).sub.2                                                                       H        CH.sub.3                                                                             H    CH.sub.3                                                                             CH.sub.3                             CHC(CH.sub.3).sub.2                                                                        H        H      H    OCH.sub.3                                                                            CH.sub.3                              ##STR142##  3-CH.sub.3                                                                             H      CH.sub.3                                                                           OCH.sub.3                                                                            CH.sub.3                              ##STR143##  H        H      H    CH.sub.3                                                                             CH.sub.3                              ##STR144##  4-OCH.sub.3                                                                            H      H    CH.sub.3                                                                             OCH.sub.3                             ##STR145##  H        H      CH.sub.3                                                                           CH.sub.3                                                                             CH.sub.3                             ______________________________________                                    

                  TABLE Va                                                        ______________________________________                                         ##STR146##                                                                   R.sub.2        R.sub.1    X.sub.2  Y.sub.2                                    ______________________________________                                        CHCH.sub.2     H          CH.sub.3 CH.sub.3                                   CHCHCH.sub.3   H          CH.sub.3 OCH.sub.3                                  C(CH.sub.3)CH.sub.2                                                                          H          OCH.sub.3                                                                              OCH.sub.3                                  C(CH.sub.3)CH.sub.2                                                                          H          CH.sub.3 CH.sub.3                                   C(CH.sub.3)CH.sub.2                                                                          H          CH.sub.3 OCH.sub.3                                  C(CH.sub.3)CH.sub.2                                                                          H          OCH.sub.3                                                                              OCH.sub.3                                  CHCHC.sub.2 H.sub.5                                                                          5-Br       CH.sub.3 CH.sub.3                                   CClCHCl        H          CH.sub.3 OCH.sub.3                                  C(CH.sub.3)CHC.sub.2 H.sub.5                                                                 H          OCH.sub.3                                                                              OCH.sub.3                                   ##STR147##    H          OCH.sub.3                                                                              CH.sub.3                                    ##STR148##    H          CH.sub.3 CH.sub.3                                    ##STR149##    H          OCH.sub.3                                                                              OCH.sub.3                                   ##STR150##    H          OCH.sub.3                                                                              CH.sub.3                                    ##STR151##    3-OCH.sub.3                                                                              CH.sub.3 CH.sub.3                                    ##STR152##    H          OCH.sub.3                                                                              OCH.sub.3                                  ______________________________________                                    

                  TABLE Vb                                                        ______________________________________                                         ##STR153##                                                                   R.sub.2      R.sub.1  R.sub.5                                                                              R.sub.6                                                                            X.sub.2                                                                              Y.sub.2                              ______________________________________                                        CHCH.sub.2   H        H      H    CH.sub.3                                                                             CH.sub.3                             CHCH.sub.2   H        CH.sub.3                                                                             CH.sub.3                                                                           CH.sub.3                                                                             OCH.sub.3                            CHCHCH.sub.3 H        H      H    OCH.sub.3                                                                            CH.sub.3                             CHCHCH.sub.3 H        H      CH.sub.3                                                                           OCH.sub.3                                                                            CH.sub.3                             C(CH.sub.3)CH.sub.2                                                                        H        H      H    CH.sub.3                                                                             OCH.sub.3                            C(CH.sub.3)CH.sub.2                                                                        H        H      H    OCH.sub.3                                                                            OCH.sub.3                            C(CH.sub.3)CH.sub.2                                                                        5-NO.sub.2                                                                             H      H    CH.sub.3                                                                             CH.sub.3                             C(CH.sub.3)CHCH.sub.3                                                                      H        H      H    CH.sub.3                                                                             OCH.sub.3                            CHCH(CH.sub.2).sub.2 CH.sub.3                                                              H        CH.sub.3                                                                             H    OCH.sub.3                                                                            CH.sub. 3                            CHC(CH.sub.3).sub.2                                                                        H        CH.sub.3                                                                             H    CH.sub.3                                                                             CH.sub.3                             CHC(CH.sub.3).sub.2                                                                        H        H      H    OCH.sub.3                                                                            CH.sub.3                              ##STR154##  3-CH.sub.3                                                                             H      CH.sub.3                                                                           OCH.sub.3                                                                            CH.sub.3                              ##STR155##  H        H      H    CH.sub.3                                                                             CH.sub.3                              ##STR156##  4-OCH.sub.3                                                                            H      H    CH.sub.3                                                                             OCH.sub.3                             ##STR157##  H        H      CH.sub.3                                                                           CH.sub.3                                                                             CH.sub.3                             ______________________________________                                    

Formulations

Useful formulations of the compounds of Formula I can be prepared inconventional ways. They include dusts, granules, pellets, solutions,suspensions, emulsions, wettable powders, emulsifiable concentrates andthe like. Many of these may be applied directly. Sprayable formulationscan be extended in suitable media and used at spray volumes of from afew liters to several hundred liters per hectare. High strengthcompositions are primarily used as intermediates for furtherformulation. The formulations, broadly, contain about 0.1% to 99% byweight of active ingredient(s) and at least one of (a) about 0.1% to 20%surfactant(s) and (b) about 1% to 99.9% solid or liquid diluent(s). Morespecifically, they will contain these ingredients in the followingapproximate proportions:

                  TABLE VI                                                        ______________________________________                                                    Active  Weight Percent*                                                       Ingredient                                                                            Diluent(s)                                                                              Surfactant(s)                                   ______________________________________                                        Wettable Powders                                                                            20-90      0-74     1-10                                        Oil Suspensions,                                                                             3-50     40-95     0-15                                        Emulsions, Solutions,                                                         (including Emulsifiable                                                       Concentrates)                                                                 Aqueous Suspension                                                                          10-50     40-84     1-20                                        Dusts          1-25     70-99     0-5                                         Granules and Pellets                                                                        0.1-95      5-99.9  0-15                                        High Strength 90-99      0-10     0-2                                         Compositions                                                                  ______________________________________                                         *Active ingredient plus at least one of a Surfactant or a Diluent equals      100 weight percent.                                                      

Lower or higher levels of active ingredient can, of course, be presentdepending on the intended use and the physical properties of thecompound. Higher ratios of surfactant to active ingredient are sometimesdesirable, and are achieved by incorporation into the formulation or bytank mixing.

Typical solid diluents are described in Watkins, et al., "Handbook ofInsecticide Dust Diluents and Carriers", 2nd Ed., Dorland Books,Caldwell, N.J., but other solids, either mined or manufactured, may beused. The more absorptive diluents are preferred for wettable powdersand the denser ones for dusts. Typical liquid diluents and solvents aredescribed in Marsden, "Solvents Guide," 2nd Ed., Interscience, New York,1950. Solubility under 0.1% is preferred for suspension concentrates;solution concentrates are preferably stable against phase separation at0° C. "McCutcheon's Detergents and Emulsifiers Annual", MC PublishingCorp., Ridgewood, N.J., as well as Sisely and Wood, "Encyclopedia ofSurface Active Agents", Chemical Publishing Co., Inc., New York, 1964,list surfactants and recommended uses. All formulations can containminor amounts of additives to reduce foaming, caking, corrosion,microbiological growth, etc.

The methods of making such compositions are well known. Solutions areprepared by simply mixing the ingredients. Fine solid compositions aremade by blending and, usually, grinding as in a hammer or fluid energymill. Suspensions are prepared by wet milling (see, for example,Littler, U.S. Pat. No. 3,060,084). Granules and pellets may be made byspraying the active material upon preformed granular carriers or byagglomeration techniques. See J. E. Browning, "Agglomeration", ChemicalEngineering, Dec. 4, 1967, pp. 147ff. and "Perry's Chemical Engineer'sHandbook", 5th Ed., McGraw-Hill, New York, 1973, pp. 8-57ff.

For further information regarding the art of formulation, see forexample:

H. M. Loux, U.S. Pat. No. 3,235,361, Feb. 15, 1966, Col. 6, line 16through Col. 7, line 19 and Examples 10 through 41;

R. W. Luckenbaugh, U.S. Pat. No. 3,309,192, Mar. 14, 1967, Col. 5, line43 through Col. 7, line 62 and Examples 8, 12, 15, 39, 41, 52, 53, 58,132, 138-140, 162-164, 166, 167 and 169-182;

H. Gysin and E. Knusli, U.S. Pat. No. 2,891,855, June 23, 1959, Col. 3,line 66 through Col. 5, line 17 and Examples 1-4;

G. C. Klingman, "Weed Control as a Science", John Wiley & Sons, Inc.,New York, 1961, pp. 81-96; and

J. D. Fryer and S. A. Evans, "Weed Control Handbook", 5th Ed., BlackwellScientific Publications, Oxford, 1968, pp. 101-103.

In the following examples, all parts are by weight unless otherwiseindicated.

EXAMPLE 17 Wettable Powder

2-(1-cyclopentenyl)-N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide--80%

sodium alkylnaphthalenesulfonate--2%

sodium ligninsulfonate--2%

synthetic amorphous silica--3%

kaolinite--13%

The ingredients are blended, hammer-milled until all the solids areessentially under 50 microns, reblended, and packaged.

EXAMPLE 18 Wettable Powder

N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide--50%

sodium alkylnaphthalenesulfonate--2%

low viscosity methyl cellulose--2%

diatomaceous earth--46%

The ingredients are blended, coarsely hammer-milled and then air-milledto produce particles essentially all below 10 microns in diameter. Theproduct is reblended before packaging.

EXAMPLE 19 Granule

Wettable Powder of Example 18--5%

attapulgite granules (U.S.S. 20-40 mesh; 0.84-0.42 mm)--95%

A slurry of wettable powder containing 25% solids is sprayed on thesurface of attapulgite granules in a double-cone blender. The granulesare dried and packaged.

EXAMPLE 20 Extruded Pellet

2-(1-cyclopentenyl)-N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide--25%

anhydrous sodium sulfate--10%

crude calcium ligninsulfonate--5%

sodium alkylnaphthalenesulfonate--1%

calcium/magnesium bentonite--59%

The ingredients are blended, hammer-milled and then moistened with about12% water. The mixture is extruded as cylinders about 3 mm diameterwhich are cut to produce pellets about 3 mm long. These may be useddirectly after drying, or the dried pellets may be crushed to pass aU.S.S. No. 20 sieve (0.84 mm openings). The granules held on a U.S.S.No. 40 sieve (0.42 mm openings) may be packaged for use and the finesrecycled.

EXAMPLE 21 Oil Suspension

N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide--25%

polyoxyethylene sorbitol hexaoleate--5%

highly aliphatic hydrocarbon oil--70%

The ingredients are ground together in a sand mill until the solidparticles have been reduced to under about 5 microns. The resultingthick suspension may be applied directly, but preferably after beingextended with oils or emulsified in water.

EXAMPLE 22 Wettable Powder

N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide--20%

sodium alkylnaphthalenesulfonate--4%

sodium ligninsulfonate--4%

low viscosity methyl cellulose--3%

attapulgite--69%

The ingredients are thoroughly blended. After grinding in a hammer-millto produce particles essentially all below 100 microns, the material isreblended and sifted through a U.S.S. No. 50 sieve (0.3 mm opening) andpackaged.

EXAMPLE 23 Low Strength Granule

N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide--1%

N,N-dimethylformamide--9%

attapulgite granules (U.S.S. 20-40 sieve)--90%

The active ingredient is dissolved in the solvent and the solution issprayed upon dedusted granules in a double cone blender. After sprayingof the solution has been completed, the blender is allowed to run for ashort period and then the granules are packaged.

EXAMPLE 24 Aqueous Suspension

2-(1-cyclopentenyl)-N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide--40%

polyacrylic acid thickener--0.3%

dodecylphenol polyethylene glycol ether--0.5%

disodium phosphate--1%

monosodium phosphate--0.5%

polyvinyl alcohol--1.0%

water--56.7%

The ingredients are blended and ground together in a sand mill toproduce particles essentially all under 5 microns in size.

EXAMPLE 25 Solution

N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide,sodium salt--5%

water--95%

The salt is added directly to the water with stirring to produce thesolution, which may then be packaged for use.

EXAMPLE 26 Low Strength Granule

N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide--0.1%

attapulgite granules (U.S.S. 20-40 mesh)--99.9%

The active ingredient is dissolved in a solvent and the solution issprayed upon dedusted granules in a double-cone blender. After sprayingof the solution has been completed, the material is warmed to evaporatethe solvent. The material is allowed to cool and then packaged.

EXAMPLE 27 Granule

2-(1-cyclopentenyl)-N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]benzenesulfonamide--80%

wetting agent--1%

crude ligninsulfonate salt (containing 5-20% of the natural sugars)--10%

attapulgite clay--9%

The ingredients are blended and milled to pass through a 100 meshscreen. This material is then added to a fluid bed granulator, the airflow is adjusted to gently fluidize the material, and a fine spray ofwater is sprayed onto the fluidized material. The fluidization andspraying are continued until granules of the desired size range aremade. The spraying is stopped, but fluidization is continued, optionallywith heat, until the water content is reduced to the desired level,generally less than 1%. The material is then discharged, screened to thedesired size range, generally 14-100 mesh (1410-149 microns), andpackaged for use.

EXAMPLE 28 High Strength Concentrate

2-(1-cyclopentenyl)-N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide--99%

silica aerogel--0.5%

synthetic amorphous silica--0.5%

The ingredients are blended and ground in a hammer-mill to produce amaterial essentially all passing a U.S.S. No. 50 screen (0.3 mmopening). The concentrate may be formulated further if necessary.

EXAMPLE 29 Wettable Powder

2-(1-cyclopentenyl)-N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]benzenesulfonamide--90%

dioctyl sodium sulfosuccinate--0.1%

synthetic fine silica--9.9%

The ingredients are blended and ground in a hammer-mill to produceparticles essentially all below 100 microns. The material is siftedthrough a U.S.S. No. 50 screen and then packaged.

EXAMPLE 30 Wettable Powder

N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-2-(1-methylethenyl)benzenesulfonamide--40%

sodium ligninsulfonate--20%

montmorillonite clay--40%

The ingredients are thoroughly blended, coarsely hammer-milled and thenair-milled to produce particles essentially all below 10 microns insize. The material is reblended and then packaged.

EXAMPLE 31 Oil Suspension

2-(1-cyclopentenyl)-N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide--35%

blend of polyalcohol carboxylic esters and oil soluble petroleumsulfonates--6%

xylene--59%

The ingredients are combined and ground together in a sand mill toproduce particles essentially all below 5 microns. The product can beused directly, extended with oils, or emulsified in water.

UTILITY

The compounds of the present invention are active herbicides. They haveutility for broad-spectrum pre- and/or post-emergence weed control inareas where complete control of all vegetation is desired, such asaround fuel storage tanks, ammunition depots, industrial storage areas,oil-well sites, drive-in theaters, around billboards, highway andrailroad structures. By properly selecting rate, time and method ofapplication, compounds of this invention may also be used to modifyplant growth beneficially, and also to selectively control weeds incrops such as wheat, barley, rice, soybeans and alfalfa.

The precise amount of the compounds of Formula I to be used in any givensituation will vary according to the particular end result desired, theamount of foliage present, the weeds to be controlled, the crop speciesinvolved, the soil type, the formulation and mode of application,weather conditions, etc. Since so many variables play a role, it is notpossible to state a rate of application suitable for all situations.Broadly speaking, the compounds of this invention are used at levels ofabout 0.05 to 20 kg/ha with a preferred range of 0.1 to 10 kg/ha. Ingeneral, the higher rates of application from within this range will beselected for adverse conditions or where extended persistence in soil isdesired.

The compounds of Formula I may be combined with other herbicides and areparticularly useful in combination with the ureas: such as3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron); the triazines: such as2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine); theuracils: such as 5-bromo-3-sec-butyl-6-methyluracil (bromacil);N-(phosponomethyl)glycine (glyphosate);3-cyclohexyl-1-methyl-6-dimethylamino-s-triazine-2,4(1H,3H)-dione(hexazinone); N,N-dimethyl-2,2-diphenylacetamide (diphenamid);2,4-dichlorophenoxyacetic acid (2,4-D) (and closely related compounds);4-chloro-2-butynyl-3-chlorophenylcarbamate (barban);S-(2,3-dichloroallyl)-diisopropylthiocarbamate (diallate);S-(2,3,3-trichloroallyl-diisopropylthiocarbamate (triallate);1,2-dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate (difenzoquatmethyl sulfate); methyl 2-[4-(2,4-dichlorophenoxy)phenoxy]propanoate(diclofop methyl);4-amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one(metribuzin); 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (linuron);3-isopropyl-1H-2,1,3-benzothiodiazin-4(3H)-one-2,2-dioxide (bentazon);α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin);1,1'-dimethyl-4,4'-bipyridinium ion (paraquat); monosodiummethanearsonate (MSMA); 2-chloro-2',6'-diethyl(methoxymethyl)acetanilide(alachlor); and 1,1-dimethyl-3-(α,α,α-trifluoro-m-tolyl)-urea(fluometuron); and5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid, methylester (acifluorfenmethyl).

The activity of these compounds was discovered in a number of greenhousetests. The tests are described and the data resulting from them areshown below.

    ______________________________________                                        Compound 1                                                                             ##STR158##                                                           Compound 2                                                                             ##STR159##                                                           Compound 3                                                                             ##STR160##                                                           Compound 4                                                                             ##STR161##                                                           Compound 5                                                                             ##STR162##                                                           Compound 6                                                                             ##STR163##                                                           Compound 7                                                                             ##STR164##                                                           Compound 8                                                                             ##STR165##                                                           Compound 9                                                                             ##STR166##                                                           Compound 10                                                                            ##STR167##                                                           Compound 11                                                                            ##STR168##                                                           ______________________________________                                    

Test A

Seeds of crabgrass (Digitaria spp.), barnyardgrass (Echinochloacrusgalli), wild oats (Avena fatua), cassia (Cassia tora), morningglory(Ipomoea sp.), cocklebur (Xanthium spp.), sorghum, corn, soybean, rice,wheat and nutsedge tubers (Cyperus rotundus) were planted in a growthmedium and treated pre-emergence with the chemicals dissolved in a nonphytotoxic solvent solution of the compounds of Table A. At the sametime, cotton having five leaves (including cotyledonary ones), bushbeans with the third trifoliate leaf expanding, crabgrass, barnyardgrassand wild oats with two leaves, cassia with three leaves (includingcotyledonary ones), morningglory and cocklebur with four leaves(including the cotyledonary ones), sorghum and corn with four leaves,soybean with two cotyledonary leaves, rice with three leaves, wheat withone leaf, and nutsedge with three to five leaves were sprayed with anon-phytotoxic solvent solution of the compounds of Table A. Othercontainers of the above untreated weeds and crops were treated pre- orpost-emergence with the same non-phytotoxic solvent so as to provide asolvent control. A set of untreated control plants was also included forcomparison. Pre-emergence and post-emergence treated plants and controlswere maintained in a greenhouse for sixteen days, then all treatedplants were compared with their respective controls and rated visuallyfor response to treatment.

The following rating system was used:

0=no effect

10=maximum effect

C=chlorosis or necrosis

D=defoliation

E=emergence inhibition

G=growth retardation

H=formative effects

S=albinism

U=unusual pigmentation

X=axillary stimulation

6Y=abscised buds or flowers

It will readily be seen from the following that the tested compounds ofthe invention are active herbicides. Furthermore, certain of thecompounds tested show selectivity as pre- and/or post-emergenceherbicides in crops such as soybeans, rice and wheat.

                                      TABLE A                                     __________________________________________________________________________               Compound                                      Compound                        1     Compound 2                                                                           Compound 3                                                                           Compound 4                                                                           Compound 5                                                                           Compound 6  7                    kg/ha      .05   .05    .05    .05    .05    0.4   .05   0.4                  __________________________________________________________________________    POST-EMERGENCE                                                                BUSHBEAN   6C,9G,6Y                                                                            5C,9G,6Y                                                                             9C     9C     9C     3S,6G,6Y                                                                            2S,5G,6Y                                                                            5S,8G,6Y             COTTON     4C,9G 5C,9G  4C,9G  9C     9C     3C,7G 2C,5G 3C,4H                MORNINGGLORY                                                                             6C,9G 9C     9C     10C    10C    3C,6H 2C,6H 3C,9G                COCKLEBUR  9C    3C,9G  6G     9C     10C    3C,5G 2C,5G 3C,5H                CASSIA     6C,9G 6C,9G  6C,9G  9C     9C     2C    2C    2C,5G                NUTSEDGE   8G    2C,8G  4C,9G  3G     1C,7G  2C,7G 1C,5G 8G                   CRABGRASS  2C,8G 2C,8G  1C,6G  1C,5G  1C,5G  2C,5G 1C,4G 2C,4H                BARNYARDGRASS                                                                            6C,9G 9C     5C,9H  9C     3C,9H  3C,9H 5C,9H 6C,9H                WILD OATS  3C,9G 3C,7G  1C,3G  2G     0      3C,7G,5X                                                                            2C,5G 2C,7G,8X             WHEAT      3C,9G 3C,8G  1C,7G  0      0      5G    5G    1C,5G                CORN       2U,9G 5C,9G  4C,8H  5U,9C  3U,9G  3C,7G 1C,3H 8H                   SOYBEAN    9C    6C,9G  9C     6C,9G  6C,9G  1H    1C    1C,1H                RICE       6C,9G 9C     3C,9G  5C,7G  2C,6G  8G    2C,7G 2C,8H                SORGHUM    2C,9G 2C,9G  2C,8H  2C,9G  2C,7G  2C,8G 3C,8H 3C,8H                __________________________________________________________________________                         Compound 7                                                                           Compound 8 Compound 9                                                                            Compound                                                                              Compound 11                      kg/ha      .05    0.4   .05  0.4 .05 0.4 .05 0.4 .05                __________________________________________________________________________              POST-EMERGENCE                                                                BUSHBEAN   4S,6G,6Y                                                                             5S,9G,6Y                                                                            4S,8G,6Y                                                                           9C  9C  9C  9C  2C,2H                                                                             1C                           COTTON     2C,2H  2C,5G 3C,7G                                                                              5C,9G                                                                             3C,7G                                                                             5C,9G                                                                             6C,9G                                                                             2C,2H                                                                             1C                           MORNINGGLORY                                                                             2C,6G  5C,9H 3C,6G                                                                              10C 10C 5C,9G                                                                             9C  2C,4G                                                                             2C                           COCKLEBUR  2C,5H  4C,9H 2C,7G                                                                              9C  9C  6C,9G                                                                             6C,9G                                                                             3C,7G                                                                             2C                           CASSIA     2C,    2C,3H 2C   3C,6G                                                                             2C  3C,8G                                                                             3C,7G                                                                             2C  1C                           NUTSEDGE   2C,8G  8G    2C,7G                                                                              1C,4G                                                                             0   1C  0   0   0                            CRABGRASS  1C,3G  1C,5H 1C   2C, 0   2G  0   0   0                            BARNYARDGRASS                                                                            3C,9H  3C,9H 3C,9H                                                                              3C,6H                                                                             3H  2C,5H                                                                             1C,2H                                                                             0   0                            WILD OATS  1C,4G,5X                                                                             1C,4G,5X                                                                            0    0   0   0   0   0   0                            WHEAT      2G     3G    0    0   0   0   0   0   0                            CORN       2C,7H  1C,4G 1C,2G                                                                              2G  2G  0   0   0   0                            SOYBEAN    1C,1H  3C,6H 1C,4H                                                                              5C,9G                                                                             1C,5G                                                                             5C,9G                                                                             3C,8G                                                                             2C,2H                                                                             1C,1H                        RICE       2C,5G  8G    1C,7G                                                                              1C,5G                                                                             0   2G  2G  0   0                            SORGHUM    3C,7H  2C,9H 2C,6G                                                                              1C,8G                                                                             2G  2C,5G                                                                             2C  0   0                  __________________________________________________________________________               Compound                                      Compound                        1     Compound 2                                                                           Compound 3                                                                           Compound 4                                                                           Compound 5                                                                           Compound 6  7                    kg/ha      .05   .05    .05    .05    .05    0.4   .05   0.4                  __________________________________________________________________________    PRE-EMERGENCE                                                                 MORNINGGLORY                                                                             9G    9G     9G     9C     9C     8G    8G    9G                   COCKLEBUR  9H    9H     9H     9H     8H     8H    9H    2C,8H                CASSIA     9G    9G     7G     9G     8G     5G    1C    2C,6G                NUTSEDGE   10E   10E    10E    5G     5G     9G    2C,8G 10E                  CRABGRASS  3C,8G 4C,8G  2C,8G  1C     0      3G    2G    1C,5G                BARNYARDGRASS                                                                            9H    5C,9H  9H     3C,9H  3C,8H  5C,9H 2C,9H 5C,9H                WILD OATS  2C,8G 2C,8G  8G     2C,6G  4G     9H    2C,9H 2C,8G                WHEAT      9H    1C,9H  1C,9G  3G     0      9H    1C,8G 3C,8G                CORN       9G    9G     1U,9H  9G     3C,9H  2C,9H 2C,8H 2C,9G                SOYBEAN    9H    9H     8H     9H     9H     2H    2G    2C,3H                RICE       10E   10E    10E    2C,6G  3G     9H    3C,9H 3C,8H                SORGHUM    6C,9G 5C,9H  1C,9G  2C,9H  2C,7G  4C,9H 2C,9G 4C,9G                __________________________________________________________________________                         Compound 7                                                                           Compound 8 Compound 9                                                                            Compound                                                                              Compound 11                      kg/ha      .05    0.4   .05  0.4 .05 0.4 .05 0.4 .05                __________________________________________________________________________              PRE-EMERGENCE                                                                 MORNINGGLORY                                                                             9G     8G    8G   9C  9C  10C 9C  2G  0                            COCKLEBUR  --     9H    9H   9H  9H  9H  9H  5H  3H                           CASSIA     1C     1H    1C   9G  6G  9G  5G  0   0                            NUTSEDGE   3C,9G  10E   10E  5G  0   6G  0   0   0                            CRABGRASS  2C,5G  1C,3G 2G   2G  0   2G  1C  0   0                            BARNYARDGRASS                                                                            5C,9H  3C,9H 2C,9H                                                                              2C,8H                                                                             3C,5G                                                                             3C,9G                                                                             3C,7G                                                                             0   0                            WILD OATS  2C,9G  2C,7H 2C,7G                                                                              1C,3G                                                                             5G  3C  1C,3G                                                                             0   0                            WHEAT      3C,8G  1C,7G 1C,7G                                                                              2G  0   0   0   0   0                            CORN       4C,8H  3C,8G 2C,7G                                                                              2C,9H                                                                             2C,6G                                                                             3C,8G                                                                             3C,7G                                                                             1C,4G                                                                             2G                           SOYBEAN    2C,3H  2C,5H 2C,3H                                                                              2C,2H                                                                             1C  1C,2H                                                                             0   1H  0                            RICE       4C,8H  5C,9H 4C,9H                                                                              3C,7G                                                                             2C  2C,6G                                                                             1C,5G                                                                             1C  0                            SORGHUM    3C,9G  2C,9G 1C,9G                                                                              9G  2C,6H                                                                             2C,8G                                                                             2C,7G                                                                             0   0                  __________________________________________________________________________

Test B

Two plastic bulb pans were filled with fertilized and limed Fellsingtonsilt loam soil. One pan was planted with corn, sorghum, Kentuckybluegrass and several grassy weeds. The other pan was planted withcotton, soybeans, purple nutsedge (Cyperus rotundus), and severalbroadleaf weeds. The following grassy and broadleaf weeds were planted:crabgrass (Digitaria sanguinalis), barnyardgrass (Echinochloacrusgalli), wild oats (Avena fatua), johnsongrass (Sorghum halepense),dallisgrass (Paspalum dilatatum), giant foxtail (Setaria faberii),cheatgrass (Bromus secalinus), mustard (Brassica arvensis), cocklebur(Xanthium pensylvanicum), pigweed (Amaranthus retroflexus), morningglory(Ipomoea hederacea), cassia (Cassia tora), teaweed (Sida spinosa),velvetleaf (Abutilon theophrasti), and jimsonweed (Datura stramonium). A12.5 cm diameter plastic pot was also filled with prepared soil andplanted with rice and wheat. Another 12.5 cm pot was planted withsugarbeets. The above four containers were treated pre-emergence withseveral test compounds within the scope of the invention.

Twenty-eight days after treatment, the plants were evaluated andvisually rated for response to the chemical treatments utilizing therating system described previously for Test A. The data are summarizedin Table B.

At the very low rates of application selected for this test and,moreover, when applied to soil rather than sand, the compounds retaintheir herbicidal properties. It will be noted that several of thecompounds have utility for selective pre-emergence weed control incrops, e.g. wheat.

                                      TABLE B                                     __________________________________________________________________________    PRE-EMERGENCE ON FALLSINGTON SILT LOAM                                        __________________________________________________________________________            Compound 1                                                                            Compound 2                                                                            Compound 3                                                                            Compound 4                                                                            Compound 5                                                                            Compound                                                                              Compound 7            Rate kg/ha                                                                            0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                  __________________________________________________________________________    Crabgrass                                                                             0   0   3G  4G  0   0   0   0   0   0   0   3G  0                     Barnyardgrass                                                                         3H,7G                                                                             3H,7G                                                                             8G,5H                                                                             8G,5H                                                                             4G  7G,3H                                                                             4G,3C                                                                             6G,3C                                                                             3G  6G,4C                                                                             4G  4G  5G                    Sorghum 9G,9C                                                                             9G,9C                                                                             7G,3H                                                                             9G,8C                                                                             3G  0   4G  8G,5H                                                                             0   3G  3G  5G,3H                                                                             5G,3H                 Wild Oats                                                                             3G  5G  4G  6G  0   0   3G  4G  0   3G  6G  5G  4G                    Johnsongrass                                                                          5G  6G,3H                                                                             5G  8G,5H                                                                             3G,3H                                                                             3G,3H                                                                             4G,2H                                                                             4G,2H                                                                             3G  2G  4G  5G  5G                    Dallisgrass                                                                           4G  6G  3G  6G  0   0   3G  3G  5G  3G  3G  3G  5G                    Giant foxtail                                                                         3G  4G,3H                                                                             5G,3H                                                                             8G,8H                                                                             3G,3H                                                                             4G,3H                                                                             3G,2H                                                                             5G,2H                                                                             3G  3G  0   3G  4G                    Ky. bluegrass                                                                         4G,3H                                                                             5G,3H                                                                             4G,3H                                                                             5G,3H                                                                             5G,3H                                                                             6G,5H                                                                             5G  5G  4G  5G  3G  6G  6G                    Cheatgrass                                                                            --  5G  5G  7G  0   3G  5G,3H                                                                             5G  0   3G  6G  8G  8G                    Sugarbeets                                                                            9G,9C                                                                             9G,9C                                                                             8G,6C                                                                             10C 8G,8C                                                                             8G,7C                                                                             9G,9C                                                                             10C 9G,9C                                                                             10C 3G  8G,9C                                                                             7G,7C                 Corn    5G  7G,5H                                                                             3G  6G,5H                                                                             0   0   5G,2H                                                                             7G,5H                                                                             3G  7G,5H                                                                             2G  3G  2G                    Mustard 7G,5C                                                                             8G,7C                                                                             9G,9C                                                                             9G,9C                                                                             8G,8C                                                                             9G,8C                                                                             9G,9C                                                                             9G,9C                                                                             9G,9C                                                                             9G,9C                                                                             8G,5C                                                                             7G,3C                                                                             9G,8C                 Cocklebur                                                                             6G  6G,3H                                                                             4G  6G,3C                                                                             3G  4G  6G,3H                                                                             9G,9C                                                                             6G,3H                                                                             6G,3H                                                                             0   4G  2G                    Pigweed --  --  --  --  --  --  10C 8G,8C                                                                             3G  10C 8G,5C                                                                             10E 10E                   Nutsedge                                                                              --  --  0   0   --  --  6G  7G  5G  6G  3G  3G  0                     Cotton  3G  7G  5G,3H                                                                             5G,3H                                                                             3G  5G,3H                                                                             8G,8C                                                                             9G,9C                                                                             7G,3H                                                                             8G,8C                                                                             4G  4G  4G                    Morningglory                                                                          6G,5H                                                                             8G,5H                                                                             3G  4G,3H                                                                             0   0   8G,8C                                                                             8G,8C                                                                             8G,5C                                                                             8G,8C                                                                             4G  3G  4G                    Cassia  8G  7G,5C                                                                             7G,5C                                                                             9G,9C                                                                             5G,3C                                                                             7G,3C                                                                             8G,5C                                                                             8G,5C                                                                             8G,5C                                                                             8G,9C                                                                             3G  5G  0                     Teaweed 10E 10E 10E 10E 0   5G,5C                                                                             5G,2C                                                                             8G,8C                                                                             7G,5C                                                                             10C 0   0   2G                    Velvetleaf                                                                            7G,5H                                                                             9G,5C                                                                             7G,3H                                                                             8G,5C                                                                             3G  7G,5H                                                                             8G,8C                                                                             10C 6G,3H                                                                             7G,5H                                                                             3G  5G,3C                                                                             4G,2H                 Jimsonweed                                                                            7G,8C                                                                             7G,5C                                                                             8G,9C                                                                             8G,8C                                                                             --  0   7G,5C                                                                             7G,7C                                                                             6G,5C                                                                             7G,5C                                                                             3G  4G  4G                    Soybean 5G,3H                                                                             5G,2H                                                                             5G,3C                                                                             6G,3H                                                                             0   5G  9G,9C                                                                             9G,9C                                                                             9G,5H                                                                             9G,9C                                                                             3G  2G  3G                    Rice    10E 10E 8G  8G,8C                                                                             3G  7G,3H                                                                             3G  5G,3H                                                                             3G  5G  4G  6G,3H                                                                             3G                    Wheat   2G  5G  4G  5G  0   3G  0   3G  0   3G  0   0   0                     __________________________________________________________________________                            Compound 7                                                                           Compound 8                                                                            Compound 9                                                                            Compound                                                                              Compound 11                            Rate kg/ha                                                                            0.12   0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                                                                              0.12                                                                              0.03                                                                              0.12               __________________________________________________________________________                    Crabgrass                                                                             3G     0   0   0   0   0   3G  0   0                                  Barnyardgrass                                                                         7G,2C  3G  4G  0   3G  0   2G  0   2G                                 Sorghum 7G,5H  3G  3G  3G  3G  0   2G  0   3G                                 Wild Oats                                                                             6G     0   3G  3G  4G  0   0   0   0                                  Johnsongrass                                                                          5G     3G  3G  3G  4G  0   0   0   0                                  Dallisgrass                                                                           5G     4G  4G  3G  3G  0   0   0   3G                                 Giant foxtail                                                                         4G     3G  4G  0   0   0   0   0   0                                  Ky. bluegrass                                                                         7G,5C  5G  7G,3H                                                                             4G  3G  0   3G  0   2G                                 Cheatgrass                                                                            8G     5G  7G  7G  2G  0   0   0   0                                  Sugarbeets                                                                            7G,7C  4G  6G,3H                                                                             6G  10E 7G,7C                                                                             7G,7C                                                                             3G  0                                  Corn    3G     4G  2G  0   3C  0   0   0   0                                  Mustard 10C    6G  8G,8C                                                                             6G,3C                                                                             10C 5G  7G,4C                                                                             0   4G                                 Cocklebur                                                                             6G,3H  3G  2H  4G  6G  2G  6G  0   0                                  Pigweed 10E    8G,8C                                                                             10E 8G,9C                                                                             10E 8G,5C                                                                             9G,8C                                                                             0   2G                                 Nutsedge                                                                              3G     3G  3G  0   4G  0   4G  0   0                                  Cotton  6G     4G  3G  5G  7G  3G  5G  0   0                                  Morningglory                                                                          3G     3G  4G  7G,3C                                                                             8G,3C                                                                             7G,4C                                                                             9G,7C                                                                             0   0                                  Cassia  3G     0   4G  0   2G  0   5G  0   0                                  Teaweed 5G,3C  0   3G  0   0   0   3G  0   0                                  Velvetleaf                                                                            5G,5H  2G  5G,3H                                                                             0   3G,2H                                                                             0   2G  0   0                                  Jimsonweed                                                                            6G,3C  0   5G  0   0   2G  3G  0   0                                  Soybean 3G,2H  3G  0   0   0   0   0   0   0                                  Rice    5G,3H  3G  3G,2H                                                                             0   0   0   0   0   0                                  Wheat   3G     0   0   0   0   0   0   0   0                  __________________________________________________________________________

Test C

The test chemicals, dissolved in a non-phytotoxic solvent, were appliedin an overall spray to the foliage and surrounding soil of selectedplant species. One day after treatment, plants were checked for rapidburn injury. Approximately fourteen days after treatment all specieswere visually compared to untreated controls and rated for response totreatment. The rating system was as described previously for Test A. Thedata are presented in Table C.

All plant species were seeded in Woodstown sandy loam soil and grown ina greenhouse. The following species were grown in soil contained inplastic pots (25 cm diameter by 13 cm deep): soybeans, cotton, alfalfa,corn, rice, wheat, sorghum, velvetleaf (Abutilon theophrasti), sesbania(Sesbania exaltata), Classia (Cassia tora), morningglory (Ipomoeahederacea), jimsonweed (Datura stramonium), cocklebur (Xanthiumpensylvanicum), crabgrass (Digitaria spp.), nutsedge (Cyperus rotundus),barnyardgrass (Echinochloa crusgalli), giant foxtail (Setaria faberii),and wild oats (Avena fatua). The following species were grown in soil ina paper cup (12 cm diameter by 13 cm deep): sunflower, sugarbeets, andmustard. All plants were sprayed approximately 14 days after planting.Additional plant species are sometimes added to this standard test inorder to evaluate unusual selectivity.

The compounds tested by this precedure show a generally high level ofpost-emergence activity. Several of the compounds also show selectivityin the post-emergence control of weeds in crops such as alfalfa andrice.

                                      TABLE C                                     __________________________________________________________________________           Compound 1                                                                            Compound 2                                                                            Compound 3                                                                            Compound 4      Compound 5                     Rate kg/ha                                                                           0.06                                                                              0.015                                                                             0.06                                                                              0.015                                                                             0.06                                                                              0.015                                                                             0.25                                                                              0.06                                                                              0.015                                                                             0.004                                                                             0.25                                                                              0.06                                                                              0.015                                                                             0.004              __________________________________________________________________________    Soybeans                                                                             10C 10C 10C 10C 10C 10C 10C 10C 9G,9C                                                                             9G,9C                                                                             10G,9C                                                                            10C 10C 10C                Velvetleaf                                                                           10C 9G,9C                                                                             10C 10C 10C 9G,7C                                                                             10C 9G,9C                                                                             9G,9C                                                                             9G,9C                                                                             10C 10C 7G,6C                                                                             7G,6C              Sesbania                                                                             10C 10C 10C 10C 10C 10C 10C 10C 10C 10C 10C 10C 10C 8G,8C              Cassia 7G  5G,2C                                                                             10C 5G,3C                                                                             7G,5C                                                                             8G,1C                                                                             10C 9G,9C                                                                             9G,9C                                                                             7G,4C                                                                             9G,9C                                                                             9G,9C                                                                             --  7G,1C              Cotton 9G,2C                                                                             8G,3C                                                                             10C 8G,2C                                                                             9G,9C                                                                             10C 10C 10C 9G,9C                                                                             10C 10C 10C 9G,9C                                                                             6G,4C              Morningglory                                                                         9G,2C                                                                             4G,2C                                                                             7G,3C                                                                             5G,1C                                                                             10C 9G,5C                                                                             10C 9G,8C                                                                             9G,8C                                                                             6G,4C                                                                             10C 10C 9G,8C                                                                             7G,4C              Alfalfa                                                                              10C 4G  8G,6C                                                                             5G,2C                                                                             9G,7C                                                                             4G,4C                                                                             9G,9C                                                                             9G,9C                                                                             8G,8C                                                                             1G  9G,9C                                                                             3G  3G,1C                                                                             1G                 Jimsonweed                                                                           --  4G  4G  2G  4G  1G  8C  7C  1C  1C  6C  5C  1C  0                  Cocklebur                                                                            10C 7G  9G,2H                                                                             8G,1H                                                                             6G  3G  9G,9C                                                                             10C 8G,4C                                                                             5G,1C                                                                             10C 8G,8C                                                                             5G,1C                                                                             5G                 Corn   7G,1U                                                                             6G,4H                                                                             7G,1U                                                                             6G,1C                                                                             6G,4H                                                                             5G,1H                                                                             9G,3C                                                                             9G,1U                                                                             8G,4H                                                                             3G,1C                                                                             9G,2H                                                                             5G,1H                                                                             3G,1C                                                                             0                  Crabgrass                                                                            8G  4G  8G  7G  6G  2G  5G,2C                                                                             2C  2C  1G  5G,2C                                                                             1C  1C  0                  Rice   9G,4C                                                                             8G,4C                                                                             8G,6C                                                                             8G,4C                                                                             8G,4C                                                                             7G  9G,2C                                                                             6G,2C                                                                             5G,1C                                                                             2G  4G  4G  1G  0                  Nutsedge                                                                             5G  1G  5G  0   6G  5G  8G,1C                                                                             2G  0   2G  2G  0   0   0                  Barnyard-                                                                            8G,6C                                                                             8G,1C                                                                             9G,5C                                                                             9G,2C                                                                             7G  9G,1C                                                                             9G,9C                                                                             9G,9C                                                                             8G,5C                                                                             4G,4C                                                                             9G,9C                                                                             9G,9C                                                                             4G,2C                                                                             1C                 grass                                                                         Wheat  7G,2C                                                                             7G  8G,3C                                                                             6G  9G,1C                                                                             7G  5G  3G  0   0   4G  2G  1G  0                  Giant Foxtail                                                                        8G,3C                                                                             6G,3C                                                                             8G,1C                                                                             8G,1C                                                                             9G,7C                                                                             6G  8G,6C                                                                             5G  0   0   6G  5G,1C                                                                             1C  0                  Wild Oats                                                                            8G,4C                                                                             7G, 8G,1C                                                                             8G,1C                                                                             7G,3C                                                                             6G  6G,2C                                                                             4G  2G  1G  4G  1G  1G  0                  Sorghum                                                                              7G,3C                                                                             7G,1C                                                                             8G,2C                                                                             7G,2C                                                                             6G,1C                                                                             0   9G,1U                                                                             8G,1U                                                                             4G,2C                                                                             4G  5G,1C                                                                             4G  3G  1G                 Mustard                                                                              10C 8G  10C 8G,7C                                                                             10C 9G,8C                                                                             10C 10C 10C 10C 10C 10C 10C 9G,8C              Pigweed                                                                              --  --  --  --  --  --  --  --  --  --  --  --  --  --                 Johnsongrass                                                                         --  --  --  --  --  --  --  --  --  --  --  --  --  --                 Sunflower                                                                            10C 9G  8G,5C                                                                             8G  10C 7G,3C                                                                             10C 10C 10C 10C 10C 10C 10C 10C                Sugarbeets                                                                           9G,2C                                                                             6G  8G  6G  7G,3C                                                                             8G  10C 9G,9C                                                                             9G,9C                                                                             9G,9C                                                                             9G,9C                                                                             9G,7C                                                                             9G,7C                                                                             9G,7C              __________________________________________________________________________

Test D

Two ten-inch in diameter plastic pans lined with polyethylene linerswere filled with prepared Fallsington silt loam soil. One pan wasplanted with seeds of wheat (Iriticum aestivum), barley (Hordeumvulgare), wild oats (Avena fatua), downy brome (Bromus tectorum),cheatgrass (Bromus secalinus), blackgrass (Alopecurus myosuroides),annual bluegrass (Poa annua), green foxtail (Setaria viridis),quackgrass (Agropyron repens), Italian ryegrass (Lolium multiflorum) andripgut brome (Bromus rigidus). The other pan was planted with seeds ofRussian thistle (Salsola kali), tansy mustard (Descuraina pinnata),smartweed (Polygonum pennsylvanicum), tumble mustard (Sisymbriumaltissium) kochia (Kochia scoparia), shepherd's purse (Capsellabursa-pastoris), Matricaria inodora, black nightshade (Solanum nigrum),yellow rocket (Barbarea vulgaris), wild mustard (Brassica kaber) andwild buckwheat (Polygonum convolvulus). The above two pans were treatedpre-emergence. At the same time two pans in which the above plantspecies were growing were treated post-emergence. Plant height at thetime of treatment ranged from 1-15 cm depending on plant species.

The compounds applied were diluted with a non-phytotoxic solvent andsprayed over-the-top of the pans. An untreated control and a solventalone control were included for comparison. All treatments weremaintained in the greenhouse for 20 days at which time the treatmentswere compared to the controls and the effects visually rated asdescribed for Test A. The recorded data are presented in Table D. Thecompounds demonstrated good pre- and post-emergence control of severaltroublesome weed species found in cereal crops, e.g. wheat and barely.

                                      TABLE D                                     __________________________________________________________________________             Compound 4                                                                            Compound 5                                                                            Compound 4                                                                            Compound 5                                            Post-emergence  Pre-emergence                                        Rate kg/ha                                                                             0.015                                                                             0.06                                                                              0.015                                                                             0.06                                                                              0.015                                                                             0.06                                                                              0.015                                                                             0.06                                     __________________________________________________________________________    wheat    3G  4G  1G  1G  4G  3G  2G  4G                                       barley   1C,2G                                                                             3C,3G                                                                             0   0   1C,1G                                                                             1C,3G                                                                             0   1G                                       wild oats                                                                              2C,2G                                                                             2C,2G                                                                             0   0   1C,5G                                                                             5G  2G  3G                                       downy brome                                                                            7G  1C,7G                                                                             0   2G  6G  8G  1G  2G                                       cheatgrass                                                                             5G  7G  2G  1C,4G                                                                             6G  8G  1C,2G                                                                             3G                                       blackgrass                                                                             5C,8G                                                                             10C 1C,1G                                                                             3C,6G                                                                             6G  9C,9G                                                                             1C,3G                                                                             1C,3G                                    annual bluegrass                                                                       7C,7G                                                                             10C 0   1G  --  --  --  --                                       green foxtail                                                                          1C,6G                                                                             3C,8G                                                                             4G  1C,6G                                                                             1C,2G                                                                             3C,5G                                                                             0   2C,1G                                    quackgrass                                                                             1C,4G                                                                             2C,7G                                                                             3G  2C,6G                                                                             1G  2G  3G  3G                                       Italian ryegrass                                                                       3C,5G                                                                             5C,5G                                                                             1C,2G                                                                             2C,4G                                                                             3G  1C,6G                                                                             3G  5G                                       ripgut brome                                                                           1C,5G                                                                             3C,6G                                                                             3G  3C,3G                                                                             2G  3G  1G  2G                                       Russian thistle                                                                        9C,9G                                                                             10C 9C,9G                                                                             9C,9G                                                                             2G  1C,2G                                                                             3G  3G                                       tansy mustard                                                                          10C 10C 10C 10C 10C 10C 10C 10C                                      smartweed                                                                              --  --  --  --  --  --  --  --                                       jimhill mustard                                                                        10C 10C 10C 10C 5C,9G                                                                             9C,9G                                                                             5C,9G                                                                             10C                                      Kochia   10C 10C 2C  4C,6G                                                                             8G  8C,8G                                                                             6G  7G                                       shepherd's purse                                                                       10C 10C 10C 10C 10C 10C 10C 10C                                      false chamomile                                                                        10C 10C 10C 10C 9G  9G  9G  9G                                       black nightshade                                                                       3C,7G                                                                             9C,9G                                                                             2C,4G                                                                             2C,6G                                                                             6G  8G  5C,7G                                                                             5C,8G                                    yellow rocket                                                                          10C 10C 5C,7G                                                                             5C,7G                                                                             9G  9C,9G                                                                             8G  9G                                       wild mustard                                                                           10C 10C 10C 10C 9C,9G                                                                             10C 9C,9G                                                                             9C,9G                                    wild buckwheat                                                                         9C,9G                                                                             10C 8C,8G                                                                             9C,9G                                                                             2C,5G                                                                             3C,7G                                                                             1C,4G                                                                             1C,6G                                    __________________________________________________________________________

What is claimed is:
 1. A compound selected from ##STR169## wherein R is##STR170## R₂ is C₂ -C₅ alkenyl, C₅ -C₆ cycloalkenyl or C₂ -C₃ alkenylsubstituted with 1-3 chlorine atoms;n is 0 or 1; R₁ is H, F, Cl, Br,NO₂, CF₃, C₁ -C₄ alkyl, OCF₃ or C₁ -C₃ alkoxy; R₅ and R₆ areindependently H or CH₃ ; A is ##STR171## Y₁ is H, CH₃, OCH₃ or Cl; and Qis O.
 2. A compound of claim 1 where R₁ is H.
 3. A compound of claim 2wherein R₅ and R₆ are H.
 4. The compound of claim 1N-[(5,6-dihydro-4-methyfuro[2,3-d]pyrimidin-2-yl)-aminocarbonyl]-3-(1-methylethenyl)benzenesulfonamide.5. A composition suitable for controlling the growth of undesiredvegetation which comprises an effective amount of a compound of claim 1and at least one of the following: surfactant, solid or liquid diluent.6. A composition suitable for controlling the growth of undesiredvegetation which comprises an effective amount of a compound of claim 2and at least one of the following: surfactant, solid or liquid diluent.7. A composition suitable for controlling the growth of undesiredvegetation which comprises an effective amount of the compound of claim4 and at least one of the following: surfactant, solid or liquiddiluent.
 8. A method for controlling the growth of undesired vegetationwhich comprises applying to the locus to be protected an effectiveamount of a compound of claim
 1. 9. A method for controlling the growthof undesired vegetation which comprises applying to the locus to beprotected an effective amount of a compound of claim
 2. 10. A method forcontrolling the growth of undesired vegetation which comprises applyingto the locus to be protected an effective amount of the compound ofclaim 4.